Maryland Standards for Sixth Grade Science

Birds and Mammals
A bird is an endothermic vertebrate that lays eggs, has feathers, and has a four- chambered heart. A mammal is an endothermic vertebrate that has skin covered with fur or hair, a four-chambered heart, a wide arrangement of teeth, and young that are born alive and feed by milk that was produced by the mother’s body. Read more...iWorksheets: 4Study Guides: 1Vocabulary Sets: 5
Cell Transport
Active and Passive Cell transport. There are three main types of passive transport - Diffusion, Osmosis and Facilitated Diffusion. There are two types of active transport - Primary (direct) and Secondary (indirect). Read more...iWorksheets: 2Vocabulary Sets: 2
Cells: The Basic Units of Life
The cell is the basic building blocks of all living organisms. There are many structures within the cell. The structures within the cell are known as organelles, which are all of the structures within the cell that carry out specific functions. Read more...iWorksheets: 3Study Guides: 1Vocabulary Sets: 4
Diversity of life
There are many characteristics that scientists use to determine if something is alive. The characteristics are very specific and are applicable to all of the different species that exist on our planet. Read more...iWorksheets: 3Study Guides: 1Vocabulary Sets: 4
Earth's Atmosphere
FreeThe Earth is unique in our solar system because it has an atmosphere that can support life. By comparison, Venus has an atmosphere that is high in ammonia and other caustic gases; it is so dense that it would crush a human. On the other hand, Mars has no atmosphere at all. Read more...iWorksheets: 4Study Guides: 1Vocabulary Sets: 6
Earth's energy resources
Renewable resources are resources that can be replenished in a reasonable amount of time. Nonrenewable resources are resources that, once consumed, cannot be replaced. Because oil, natural gas, and coal are the products of plants and organisms, they are known as fossil fuels. Fossil fuels are ultimately a limited resource, it is important to develop and use renewable energy resources. Read more...iWorksheets: 3Study Guides: 1Vocabulary Sets: 1
Electricity
Charged Particles. Electric charges are either positive (+) or negative (-). The protons in an atom have a positive charge and the electrons around the atom have a negative charge. If two particles have similar charges, they repel each other, but, if they have opposite charges, they attract each other. This explains why an atom holds together. Read more...iWorksheets: 4Study Guides: 1Vocabulary Sets: 2
Fishes, Amphibians, and Reptiles
Fish reproduce using external fertilization. External fertilization is when the female’s eggs are meeting with the male’s sperm outside of the female’s body. Three major groups are the jawless fish, cartilaginous fish, and bony fish. An amphibian is a vertebrate that is ectothermic. Most amphibians live the beginning of their lives in the water. A reptile is a vertebrate that is ectothermic and has scaly skin and a pair of lungs. Lizards, snakes, turtles, tortoises, and crocodiles are all examples of reptiles. Read more...iWorksheets: 4Study Guides: 1Vocabulary Sets: 5
Genetics - Study of Heredity
Heredity is the passing on of traits from parents to their offspring, either through asexual reproduction or sexual reproduction, the offspring cells or organisms acquire the genetic information of their parents. Read more...iWorksheets: 3Study Guides: 1Vocabulary Sets: 8
Groundwater Resources
Groundwater is fresh water stored in regolith and bedrock. Even though solid rock like granite or marble has no pores, it often has a series of cracks and possibly faults. Water accumulates in the cracks in solid bedrock and, at times, is a source of water. A layer of rock material that can store water and allow the movement of water through the ground is called an aquifer. Read more...iWorksheets: 3Study Guides: 1Vocabulary Sets: 1
Introduction to Animals
Scientists have discovered about 1.2 million different species of animals on our planet. Planet Earth is home to 8.7 million species, scientists estimate. Animals have adapted to feed on different types of food. There are animals that eat only animals (carnivores), animals that eat only plants (herbivores), and animals that eat both plants and animals (omnivores). Read more...iWorksheets: 3Study Guides: 1Vocabulary Sets: 4
Introduction to earth science
The field of Geology includes a number of specialized disciplines including: Mineralogy - the study of minerals, Paleontology - the study of fossils, Petrology - the study of rocks, Geophysics - the study of the physics of the Earth and its atmosphere, Meteorology - the study of weather and weather prediction, Seismology - the study of earthquakes, and Volcanology - the study of volcanoes. Read more...iWorksheets: 3Study Guides: 1Vocabulary Sets: 1
Introduction to matter
Matter is anything that takes up space and has mass. Some of its properties are physical and would include such things as color, volume and weight. Other properties are chemical and deal with how matter chemically reacts with other materials. Matter can undergo both physical and chemical changes. Read more...iWorksheets: 3Study Guides: 1Vocabulary Sets: 2
Maps as models of the earth/Contour models
Geologists use a variety of different types of maps to model or depict the three-dimensional Earth on a two-dimensional surface. Each type of map serves a purpose because each type has its special strengths: Topographic Maps, Mercator Projections, Conic Projections, Azimuthal Projections. Read more...iWorksheets: 3Study Guides: 1Vocabulary Sets: 4
Mollusks, Arthropods and Echinoderms
FreeA molusk is an invertibrate that has an un-segmented, soft body that is almost always protected by outer shells. Snails, octopuses, clams, and oysters are all species of mollusks. Arthropods are invertebrates with external skeletons, segmented bodies, and appendages. Appendages are structures that are jointed and attached to the body. Read more...iWorksheets: 4Study Guides: 1Vocabulary Sets: 7
Moving and Controlling the Body
Tissues are collections of cells of different types that interact to support the function of the tissues, organs and overall organ system. The brain and spinal cord communicate with all other parts of the body through the nerves that make up the peripheral nervous system. Sensory neurons carry impulses toward the brains and spinal cord. Motor neurons carry impulses away from the brain and interneurons carry impulses within the brain and spinal cord. Read more...iWorksheets: 3Vocabulary Sets: 3
Plant Processes
Photosynthesis is a process powered by sunlight that uses carbon dioxide and water to produce oxygen and food. The process requires six molecules of water and six molecules of carbon dioxide. These molecules undergo chemical changes and oxygen and sugars like glucose are produced. The oxygen is let go through the stomata and the sugars are used to power cell functions. Read more...iWorksheets: 4Study Guides: 1Vocabulary Sets: 2
Plant reproduction
An angiosperm is a plant that produces seeds within a fruit. Reproduction begins when the pollen from the anther is in contact with the stigma. Eventually the egg will be fertilized in the ovule that is in the ovary and turn from a zygote to an embryo inside the seed. The life cycle of angiosperms among the different species is very similar: Pollination, fertilization, and the development of fruit. Read more...iWorksheets: 3Study Guides: 1Vocabulary Sets: 1
Protection, Reproduction and Cooperation
The human body protects itself with non-specific defense systems that react naturally and automatically to invading organisms. Your skin, with its layers of protective tissue, is a very strong, watertight barrier to environmental pathogens. What is an Antigen? A antigen is a molecule that immune system can recognize as either part of the body or as foreign to the body. Read more...iWorksheets: 3Vocabulary Sets: 2
Providing Fuel and Transportation
Food is stored and processed in your stomach, so that your body can gain access to the nutrients in the food. Your body relies on what you eat and drink to maintain healthy tissues and to generate the energy. There are six categories of nutrients: carbohydrates, fats, proteins, vitamins, minerals and water. Read more...iWorksheets: 4Vocabulary Sets: 3
Six Kingdoms of Life
The six Kingdoms are: Archaebacteria, Eubacteria, Fungi, Protists, Plants and Animals. Fungi include mushrooms, molds, and yeasts. Protists include some algae, paramecium, and amoeba. Eubacteria are single-celled organisms that don’t have a nucleus. Animals are divided into vertebrates and invertebrates and include mammals, amphibians, reptiles, birds and fish. Read more...iWorksheets: 3Vocabulary Sets: 3
Solids, liquids and gases
Matter exists in three different states or phases: solid, liquids and gases or vapors. A solid has a definite shape and volume, A liquid has a definite volume but no definite shape and A gas has neither a definite volume nor shape. Gases or vapors are influenced by three factors: temperature, volume and pressure. Read more...iWorksheets: 3Study Guides: 1Vocabulary Sets: 1
Sponges, Cnidarians and Worms
Until recently, people thought that sponges were plants. The fact that they take in food puts them into the animal kingdom. When they are adults, they do not move. They attach themselves to a hard surface where they live out their lives. The structure of a sponge is very basic with some specialized tissue, but lacking organs and organ systems. Read more...iWorksheets: 4Study Guides: 1Vocabulary Sets: 4
Studying and exploring space
Edwin Powell Hubble (1889-1953) was an American astronomer who, in 1923, showed that the universe is expanding. He used photographs to prove that there are galaxies beyond our own. Prior to this, scientists believed that our galaxy was the entire universe. In 1990, the Hubble Space Telescope (clearly named in honor of the great 20th century astronomer) was launched by NASA and has provided some of the most spectacular images of the universe ever seen. Read more...iWorksheets: 3Study Guides: 1Vocabulary Sets: 4
Weather patterns
Air masses are extensive bodies of air that have similar temperatures and water content throughout. The boundary or line delineating different air masses is the weather front. A small weather system that has intense energy that creates heavy rains, high winds, and lightning is called a thunderstorm. A hurricane is an extremely large, tropical, rotating weather system that has sustained winds of at least 119 km/hr. Read more...iWorksheets: 3Study Guides: 1Vocabulary Sets: 4
Work, Power & Simple Machines
. Read more...iWorksheets: 3Vocabulary Sets: 2

MD.1.0. Skills and Processes: Students will demonstrate the thinking and acting inherent in the practice of science.

1.A.1. Constructing Knowledge: Design, analyze, or carry out simple investigations and formulate appropriate conclusions based on data obtained or provided.

1.A.1.a. Explain that scientists differ greatly in what phenomena they study and how they go about their work.
The Study of Heredity
Worksheets :2Vocabulary :2
Elements and the periodic table
Worksheets :3Vocabulary :2
Atoms and Chemical Bonding
Worksheets :3Vocabulary :2
1.A.1.e. Explain that if more than one variable changes at the same time in an investigation, the outcome of the investigation may not be clearly attributable to any one of the variables.
The nature of science
Science process skills include observing, classifying, estimating, measuring, inferring, predicting, creating graphs, and developing models. Identify Dependent and Controlled Variables: A dependent variable is the variable that is being observed during an experiment. A control variable is the part of an experiment that you do not make any changes to which you can use to compare the other parts of your experiment to. Read more...iWorksheets :3Study Guides :1
The World of Life Science
Scientific inquiry is a process of designing and conducting scientific investigations including asking a question, completing an investigation, attempting to answer the question, and presenting the results to other. A conclusion is summing up the information from an investigation by either supporting the hypothesis or not. Read more...iWorksheets :4Study Guides :1Vocabulary :2
1.A.1.h. Use mathematics to interpret and communicate data.
Energy: Forms and Changes
Energy can have many forms, including mechanical, thermal, electrical, chemical, nuclear and electromagnetic energy. Mechanical energy = potential energy + kinetic energy. Thermal energy is the energy of an objects created by the motion (kinetic energy) of its particles (molecules and atoms). Chemical energy is the potential energy that is stored in chemical bonds. Electrical energy is produced by the movement of charged particles called electrons. Read more...iWorksheets :3Vocabulary :3

1.B.1. Applying Evidence and Reasoning: Review data from a simple experiment, summarize the data, and construct a logical argument about the cause-and-effect relationships in the experiment.

1.B.1.a. Verify the idea that there is no fixed set of steps all scientists follow, scientific investigations usually involve the collection of relevant evidence, the use of logical reasoning, and the application of imagination in devising hypotheses and explanations to make sense of the collected evidence.
The nature of science
Science process skills include observing, classifying, estimating, measuring, inferring, predicting, creating graphs, and developing models. Identify Dependent and Controlled Variables: A dependent variable is the variable that is being observed during an experiment. A control variable is the part of an experiment that you do not make any changes to which you can use to compare the other parts of your experiment to. Read more...iWorksheets :3Study Guides :1
1.B.1.d. Describe the reasoning that lead to the interpretation of data and conclusions drawn.
The nature of science
Science process skills include observing, classifying, estimating, measuring, inferring, predicting, creating graphs, and developing models. Identify Dependent and Controlled Variables: A dependent variable is the variable that is being observed during an experiment. A control variable is the part of an experiment that you do not make any changes to which you can use to compare the other parts of your experiment to. Read more...iWorksheets :3Study Guides :1
Sound
Sound is the energy objects produce when they vibrate. Sound energy is a form of mechanical energy. The substance that the sound waves travel through is called the medium. A medium can be a solid, liquid or gas. In a longitudinal wave, the particles of the medium move back and forth, while the energy moves forward. Then the particles are pushed together, it is called compression. When the particles are spread apart, it is called rarefaction. Read more...iWorksheets :3Vocabulary :4
Elements and the periodic table
Worksheets :3Vocabulary :2

1.C.1. Communicating Scientific Information: Develop explanations that explicitly link data from investigations conducted, selected readings and, when appropriate, contributions from historical discoveries.

1.C.1.e. Explain how different models can be used to represent the same thing. What kind of a model to use and how complex it should be depend on its purpose. Choosing a useful model is one of the instances in which intuition and creativity come into play in science, mathematics, and engineering
The nature of science
Science process skills include observing, classifying, estimating, measuring, inferring, predicting, creating graphs, and developing models. Identify Dependent and Controlled Variables: A dependent variable is the variable that is being observed during an experiment. A control variable is the part of an experiment that you do not make any changes to which you can use to compare the other parts of your experiment to. Read more...iWorksheets :3Study Guides :1
The Study of Heredity
Worksheets :2Vocabulary :2
Meiosis
Worksheets :3Vocabulary :3
Atoms and Chemical Bonding
Worksheets :3Vocabulary :2

1.D.3. Technology: Analyze the value and the limitations of different types of models in explaining real things and processes.

1.D.3.a. Explain that the kind of model to use and how complex it should be depends on its purpose and that it is possible to have different models used to represent the same thing.
The nature of science
Science process skills include observing, classifying, estimating, measuring, inferring, predicting, creating graphs, and developing models. Identify Dependent and Controlled Variables: A dependent variable is the variable that is being observed during an experiment. A control variable is the part of an experiment that you do not make any changes to which you can use to compare the other parts of your experiment to. Read more...iWorksheets :3Study Guides :1
The Study of Heredity
Worksheets :2Vocabulary :2
Meiosis
Worksheets :3Vocabulary :3
Atoms and Chemical Bonding
Worksheets :3Vocabulary :2
1.D.3.b. Explain, using examples that models are often used to think about processes that happen too slowly, too quickly, or on too small a scale to observe directly, or that are too vast to be changed deliberately, or that are potentially dangerous.
The nature of science
Science process skills include observing, classifying, estimating, measuring, inferring, predicting, creating graphs, and developing models. Identify Dependent and Controlled Variables: A dependent variable is the variable that is being observed during an experiment. A control variable is the part of an experiment that you do not make any changes to which you can use to compare the other parts of your experiment to. Read more...iWorksheets :3Study Guides :1
The Study of Heredity
Worksheets :2Vocabulary :2
Meiosis
Worksheets :3Vocabulary :3
Atoms and Chemical Bonding
Worksheets :3Vocabulary :2
1.D.3.c. Explain that models may sometimes mislead by suggesting characteristics that are not really shared with what is being modeled.
The nature of science
Science process skills include observing, classifying, estimating, measuring, inferring, predicting, creating graphs, and developing models. Identify Dependent and Controlled Variables: A dependent variable is the variable that is being observed during an experiment. A control variable is the part of an experiment that you do not make any changes to which you can use to compare the other parts of your experiment to. Read more...iWorksheets :3Study Guides :1
The Study of Heredity
Worksheets :2Vocabulary :2
Meiosis
Worksheets :3Vocabulary :3
Atoms and Chemical Bonding
Worksheets :3Vocabulary :2

MD.2.0. Earth/Space Science: Students will use scientific skills and processes to explain the chemical and physical interactions (i.e., natural forces and cycles, transfer of energy) of the environment, Earth, and the universe that occur over time.

2.A.2. Materials and Processes That Shape A Planet: Cite evidence to demonstrate and explain that physical weathering and chemical weathering cause changes to Earth materials.

2.A.2.a. Identify examples of physical weathering, such as the effect of wind, ice, etc. and describe the changes caused in each.
Weathering of rocks and soil formation
Weathering is a collection of natural processes that, over time, break large rock into smaller and smaller pieces. Rocks can be broken down by physical processes (called mechanical weathering) and chemical processes (called chemical weathering). Soil is a combination of decomposed rock and organic materials. Read more...iWorksheets :4Study Guides :1Vocabulary :4
2.A.2.b. Describe the changes in materials caused by each of the chemical weathering processes listed: Rusting/tarnishing; Dissolving by acid rain.
Minerals of Earth's crust
Minerals are solid elements formed naturally in the Earth’s surface. Every mineral has a unique chemical composition – a mix of the chemicals that formed it. Rocks are made up of minerals, sometimes more than one kind of mineral! Read more...iWorksheets :3Study Guides :1Vocabulary :4
Weathering of rocks and soil formation
Weathering is a collection of natural processes that, over time, break large rock into smaller and smaller pieces. Rocks can be broken down by physical processes (called mechanical weathering) and chemical processes (called chemical weathering). Soil is a combination of decomposed rock and organic materials. Read more...iWorksheets :4Study Guides :1Vocabulary :4
Our impact on earth
Any waste substance that is added to a natural system in amounts greater than that natural system can break it down or eliminate it is called pollution. The waste substance itself is the pollutant. A natural resource that can be replenished is called a renewable resource. In most cases, water is a renewable resource. Read more...iWorksheets :3Study Guides :1Vocabulary :1
2.A.2.c. Compare physical and chemical weathering and provide examples if changes caused in Earth materials or features by each of these processes.
Landforms, Rocks and soil
Landsforms are features that make up the Earth's surface. They include mountains, plateaus, canyons, deltas, hills, valleys, and more... The Rock cycle, Volcanoes. How do Earthquakes happen? Read more...iWorksheets :4Study Guides :1Vocabulary :4
Minerals of Earth's crust
Minerals are solid elements formed naturally in the Earth’s surface. Every mineral has a unique chemical composition – a mix of the chemicals that formed it. Rocks are made up of minerals, sometimes more than one kind of mineral! Read more...iWorksheets :3Study Guides :1Vocabulary :4
Rocks
There are three major groupings of rocks: igneous, metamorphic, and sedimentary. Igneous rocks form when liquid rock cools and hardens. Sedimentary rocks: Clastic, Chemical, Biochemical or organic. Metamorphic rocks: foliated and non-foliated (or massive). Read more...iWorksheets :4Study Guides :1Vocabulary :3
Weathering of rocks and soil formation
Weathering is a collection of natural processes that, over time, break large rock into smaller and smaller pieces. Rocks can be broken down by physical processes (called mechanical weathering) and chemical processes (called chemical weathering). Soil is a combination of decomposed rock and organic materials. Read more...iWorksheets :4Study Guides :1Vocabulary :4
How Does the Earth's Surface Change?
Earth Structure and Processes Read more...iWorksheets :2Vocabulary :3

2.A.4. Materials and Processes That Shape A Planet: Differentiate among sedimentary, igneous, and metamorphic rocks based upon the processes by which they are formed.

2.A.4.a. Identify and describe the processes that form sedimentary rock: Deposition; Compaction; Cementation.
Minerals of Earth's crust
Minerals are solid elements formed naturally in the Earth’s surface. Every mineral has a unique chemical composition – a mix of the chemicals that formed it. Rocks are made up of minerals, sometimes more than one kind of mineral! Read more...iWorksheets :3Study Guides :1Vocabulary :4
Rocks
There are three major groupings of rocks: igneous, metamorphic, and sedimentary. Igneous rocks form when liquid rock cools and hardens. Sedimentary rocks: Clastic, Chemical, Biochemical or organic. Metamorphic rocks: foliated and non-foliated (or massive). Read more...iWorksheets :4Study Guides :1Vocabulary :3
2.A.4.b. Identify and describe the processes that form igneous rocks: Volcanic eruptions; Igneous intrusions.
Minerals of Earth's crust
Minerals are solid elements formed naturally in the Earth’s surface. Every mineral has a unique chemical composition – a mix of the chemicals that formed it. Rocks are made up of minerals, sometimes more than one kind of mineral! Read more...iWorksheets :3Study Guides :1Vocabulary :4
Rocks
There are three major groupings of rocks: igneous, metamorphic, and sedimentary. Igneous rocks form when liquid rock cools and hardens. Sedimentary rocks: Clastic, Chemical, Biochemical or organic. Metamorphic rocks: foliated and non-foliated (or massive). Read more...iWorksheets :4Study Guides :1Vocabulary :3
2.A.4.c. Identify and describe the processes that form metamorphic rocks: High Temperature; Pressure.
Minerals of Earth's crust
Minerals are solid elements formed naturally in the Earth’s surface. Every mineral has a unique chemical composition – a mix of the chemicals that formed it. Rocks are made up of minerals, sometimes more than one kind of mineral! Read more...iWorksheets :3Study Guides :1Vocabulary :4
Rocks
There are three major groupings of rocks: igneous, metamorphic, and sedimentary. Igneous rocks form when liquid rock cools and hardens. Sedimentary rocks: Clastic, Chemical, Biochemical or organic. Metamorphic rocks: foliated and non-foliated (or massive). Read more...iWorksheets :4Study Guides :1Vocabulary :3
2.A.4.d. Cite features that can be used as evidence to distinguish among the three types of rocks and relate these features to the processes that form each rock type.
Minerals of Earth's crust
Minerals are solid elements formed naturally in the Earth’s surface. Every mineral has a unique chemical composition – a mix of the chemicals that formed it. Rocks are made up of minerals, sometimes more than one kind of mineral! Read more...iWorksheets :3Study Guides :1Vocabulary :4
Rocks
There are three major groupings of rocks: igneous, metamorphic, and sedimentary. Igneous rocks form when liquid rock cools and hardens. Sedimentary rocks: Clastic, Chemical, Biochemical or organic. Metamorphic rocks: foliated and non-foliated (or massive). Read more...iWorksheets :4Study Guides :1Vocabulary :3
2.A.4.e. Describe the processes that change one form of rock into another (rock cycle).
Landforms, Rocks and soil
Landsforms are features that make up the Earth's surface. They include mountains, plateaus, canyons, deltas, hills, valleys, and more... The Rock cycle, Volcanoes. How do Earthquakes happen? Read more...iWorksheets :4Study Guides :1Vocabulary :4
Rocks
There are three major groupings of rocks: igneous, metamorphic, and sedimentary. Igneous rocks form when liquid rock cools and hardens. Sedimentary rocks: Clastic, Chemical, Biochemical or organic. Metamorphic rocks: foliated and non-foliated (or massive). Read more...iWorksheets :4Study Guides :1Vocabulary :3
How Does the Earth's Surface Change?
Earth Structure and Processes Read more...iWorksheets :2Vocabulary :3

2.C.1. Plate Tectonics: Recognize and describe the internal and external structure of the Earth.

2.C.1.a. Recognize and describe that the Earth's mantle: Lies between the core and the crust; Is very hot; Has properties of both solids and liquid.
Plate tectonics
The Earth is a dynamic planet. Its interior is actually in motion! The crust on its surface is also in motion. It was not until the 20th century that geologists truly began to understand Earth's dynamic movements. New theories, supported by ever-improving technologies, have made it possible to more clearly understand the forces working within the planet we call home. Read more...iWorksheets :4Study Guides :1Vocabulary :7
Plate Tectonics
The Earth's layers: crust, mantle, core. Plate tectonics is a scientific theory that describes the large-scale motion of plates of the Earth's crust over hot mantle rock. Plate tectonics are active on Earth since the very beginning. Read more...iWorksheets :3Vocabulary :3
2.C.1.b. Recognize and describe that the Earth's core: Is at the center of the Earth; Is very hot; Is dense and metallic.
Plate tectonics
The Earth is a dynamic planet. Its interior is actually in motion! The crust on its surface is also in motion. It was not until the 20th century that geologists truly began to understand Earth's dynamic movements. New theories, supported by ever-improving technologies, have made it possible to more clearly understand the forces working within the planet we call home. Read more...iWorksheets :4Study Guides :1Vocabulary :7
Plate Tectonics
The Earth's layers: crust, mantle, core. Plate tectonics is a scientific theory that describes the large-scale motion of plates of the Earth's crust over hot mantle rock. Plate tectonics are active on Earth since the very beginning. Read more...iWorksheets :3Vocabulary :3
2.C.1.c. Identify and describe the Earth's crust: The solid crust consists of separate plates; The plates constantly move at a slow pace in different directions; The plates interact with one another as a result of plate motion.
Landforms, Rocks and soil
Landsforms are features that make up the Earth's surface. They include mountains, plateaus, canyons, deltas, hills, valleys, and more... The Rock cycle, Volcanoes. How do Earthquakes happen? Read more...iWorksheets :4Study Guides :1Vocabulary :4
Plate tectonics
The Earth is a dynamic planet. Its interior is actually in motion! The crust on its surface is also in motion. It was not until the 20th century that geologists truly began to understand Earth's dynamic movements. New theories, supported by ever-improving technologies, have made it possible to more clearly understand the forces working within the planet we call home. Read more...iWorksheets :4Study Guides :1Vocabulary :7
Earthquakes
The theory of plate tectonics describes the movement of the plates of the lithosphere relative to each other. This movement creates forces that push and pull on the crust. Crustal rock can absorb and store energy, but only so much. There is a point at which the stress is more than the rock can hold and the rock breaks. When the rock breaks, the stored energy is released and this energy travels through the Earth. This sudden release of energy created when rocks break is called an earthquake Read more...iWorksheets :5Study Guides :1Vocabulary :6
Plate Tectonics
The Earth's layers: crust, mantle, core. Plate tectonics is a scientific theory that describes the large-scale motion of plates of the Earth's crust over hot mantle rock. Plate tectonics are active on Earth since the very beginning. Read more...iWorksheets :3Vocabulary :3
How Does the Earth's Surface Change?
Earth Structure and Processes Read more...iWorksheets :2Vocabulary :3

2.C.2. Plate Tectonics: Recognize and explain how major geologic events are a result of the movement of Earth's crustal plates.

2.C.2.a. Recognize and describe the evidence for plate movement: Shape of continents; Continuity of geologic features and fossils on the continents; Ocean rifts, seafloor spreading; Global patterns of earthquakes and volcanoes
Minerals of Earth's crust
Minerals are solid elements formed naturally in the Earth’s surface. Every mineral has a unique chemical composition – a mix of the chemicals that formed it. Rocks are made up of minerals, sometimes more than one kind of mineral! Read more...iWorksheets :3Study Guides :1Vocabulary :4
Plate tectonics
The Earth is a dynamic planet. Its interior is actually in motion! The crust on its surface is also in motion. It was not until the 20th century that geologists truly began to understand Earth's dynamic movements. New theories, supported by ever-improving technologies, have made it possible to more clearly understand the forces working within the planet we call home. Read more...iWorksheets :4Study Guides :1Vocabulary :7
Plate Tectonics
The Earth's layers: crust, mantle, core. Plate tectonics is a scientific theory that describes the large-scale motion of plates of the Earth's crust over hot mantle rock. Plate tectonics are active on Earth since the very beginning. Read more...iWorksheets :3Vocabulary :3
2.C.2.b. Recognize and explain that major geologic events (earthquakes, volcanic activity, sea floor spreading) occur along crustal plate boundaries.
Plate tectonics
The Earth is a dynamic planet. Its interior is actually in motion! The crust on its surface is also in motion. It was not until the 20th century that geologists truly began to understand Earth's dynamic movements. New theories, supported by ever-improving technologies, have made it possible to more clearly understand the forces working within the planet we call home. Read more...iWorksheets :4Study Guides :1Vocabulary :7
Volcanoes
The intense heat and pressures in the mantle turn solid rock into liquid magma. Magma comes out through the surface of the crust to form volcanoes. Three volcanoes categories are cinder cones, shield volcanoes and stratovolcanoes. The ash and rock that is extruded by explosive volcanoes is called pyroclastic material. This volcanic mudflow is called a lahar. Read more...iWorksheets :4Study Guides :1Vocabulary :3
Plate Tectonics
The Earth's layers: crust, mantle, core. Plate tectonics is a scientific theory that describes the large-scale motion of plates of the Earth's crust over hot mantle rock. Plate tectonics are active on Earth since the very beginning. Read more...iWorksheets :3Vocabulary :3

2.D.1. Astronomy: Recognize that objects of our solar system are interrelated.

2.D.1.a. Recognize that Earth and its closest star, the sun, are part of a disk-shape galaxy of stars and that our galaxy is one of billions of galaxies.
The solar system
All planets in our solar system rotate and they all revolve around the Sun. Inner planets: Mercury, Venus, Earth. Outer planets: Jupiter, Saturn, Uranus, Neptune. Comets are made of ice and rock. They have four parts: a nucleus which is the solid portion of the comet and is made of dust and ice, a coma which is a cloud of dust and evaporated gases, an ion tail and a dust tail. Read more...iWorksheets :3Study Guides :1Vocabulary :3
Stars, Galaxies and the Universe
Stars do not just exist randomly throughout the universe. They are clustered in large groups. Large groups of stars in space are called galaxies. Our galaxy is called The Milky Way. Astronomers estimate that there are from 200 billion to 400 billion stars in the Milky Way. Read more...iWorksheets :3Study Guides :1Vocabulary :2
Our Solar System
Worksheets :3Vocabulary :2

MD.3.0. Life Science: The students will use scientific skills and processes to explain the dynamic nature of living things, their interactions, and the results from the interactions that occur over time.

3.D.1. Evolution: Explain that in any particular environment, the growth and survival of organisms and species depend on the physical conditions.

3.D.1.a. Cite examples and describe that small differences between parents and offspring can accumulate (through selective breeding) in successive generations so that descendants are very different from their ancestors.
The Evolution and interaction of Living Things
Over 3.5 billion years ago, the Earth was much different than it is today. Scientists believe that early Earth’s atmosphere was made up of nitrogen, water vapor, carbon dioxide, and methane. All of these gases are still on Earth today, but in different quantities. The gases in Earth's atmosphere include: Nitrogen - 78 percent, Oxygen - 21 percent, Argon - 0.93 percent, Carbon dioxide - 0.04 percent, Trace amounts of neon, helium, methane, krypton and hydrogen, as well as water vapor. Read more...iWorksheets :3Study Guides :1Vocabulary :2
3.D.1.b. Explain that in all environments-freshwater, marine, forest, desert, grassland, mountain, and others-organisms with similar needs may compete with one another for resources, including food, space, water, air, and shelter.
Interactions among living things
An important and essential interaction among living things involves the flow of energy within an environment. All living organisms need energy to survive! Energy moves through an environment through food chains and food webs. Read more...iWorksheets :3Study Guides :1Vocabulary :2
3.D.1.c. Explain that in any particular environment individual organisms with certain traits are more likely than others to survive and have offspring.
The Evolution and interaction of Living Things
Over 3.5 billion years ago, the Earth was much different than it is today. Scientists believe that early Earth’s atmosphere was made up of nitrogen, water vapor, carbon dioxide, and methane. All of these gases are still on Earth today, but in different quantities. The gases in Earth's atmosphere include: Nitrogen - 78 percent, Oxygen - 21 percent, Argon - 0.93 percent, Carbon dioxide - 0.04 percent, Trace amounts of neon, helium, methane, krypton and hydrogen, as well as water vapor. Read more...iWorksheets :3Study Guides :1Vocabulary :2
3.D.1.e. Describe ways in which changes in environmental conditions can affect the survival of individual organisms and entire species.
Earth`s Climate
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3.D.1.f. Describe how sediments of sand and smaller particles (sometimes containing the remains of organisms) are gradually buried and are cemented together by dissolved minerals to form solid rock; and describe that such fossils provide evidence for the long history of changing life forms whose remains are found in the rocks.
Fossils
Ancient life forms have been preserved, in part and in whole, in the rock record. These preserved pieces of ancient life forms are called fossils. Fossils found in limestone are usually formed by a process called cast and mold. Petrified wood is formed by a process called petrification. In very hot, arid environments, flesh can be dried out and preserved indefinitely. This process is called mummification. Read more...iWorksheets :4Study Guides :1Vocabulary :2

3.F.1. Ecology: Give reasons supporting the fact that the number of organisms an environment can support depends on the physical conditions and resources available.

3.F.1.c. Explain that within any environment organisms with similar needs may compete with one another for resources.
Interactions among living things
An important and essential interaction among living things involves the flow of energy within an environment. All living organisms need energy to survive! Energy moves through an environment through food chains and food webs. Read more...iWorksheets :3Study Guides :1Vocabulary :2
3.F.1.d. Cite examples to illustrate that competition is reduced when organisms use different sets of resources, such as birds in a forest eat different kinds and sizes of seeds.
Interactions among living things
An important and essential interaction among living things involves the flow of energy within an environment. All living organisms need energy to survive! Energy moves through an environment through food chains and food webs. Read more...iWorksheets :3Study Guides :1Vocabulary :2

MD.4.0. Chemistry: Students will use scientific skills and processes to explain the composition, structure, and interactions of matter in order to support the predictability of structure and energy transformations.

4.C.1. States of Matter: Provide evidence and examples illustrating that many substances can exist as a solid, liquid, or gas depending on temperature.

4.C.1.a. Use evidence from investigations to describe the effect that adding heat energy to different types of matter has on the rate at which the matter changes from one state to another.
Science worksheets: Solids, liquids and gases.
Solid, liquid, and gas are all states of matter. The molecules in solids are tightly packed together. The molecules in liquids are not as close as those in solids; they have a little more room to move around. The molecules in gases are far apart. Gases can fill any size room or any size container. Read more...iWorksheets :3Study Guides :1Vocabulary :1
4.C.1.b. Based on data from investigations describe the effect that removing heat energy from different types of matter has on the rate at which the matter changes from one state to another.
Science worksheets: Solids, liquids and gases.
Solid, liquid, and gas are all states of matter. The molecules in solids are tightly packed together. The molecules in liquids are not as close as those in solids; they have a little more room to move around. The molecules in gases are far apart. Gases can fill any size room or any size container. Read more...iWorksheets :3Study Guides :1Vocabulary :1
4.C.1.c. Analyze data gathered and formulate a conclusion on the effects of temperature change on most substances.
Science worksheets: Solids, liquids and gases.
Solid, liquid, and gas are all states of matter. The molecules in solids are tightly packed together. The molecules in liquids are not as close as those in solids; they have a little more room to move around. The molecules in gases are far apart. Gases can fill any size room or any size container. Read more...iWorksheets :3Study Guides :1Vocabulary :1

4.D.1. Physical and Chemical Changes: Cite evidence to support the fact that some substances can be separated into the original substances from which they were made.

4.D.1.a. Investigate and identify ways to describe and classify mixtures using the observable and measurable properties of their components: Magnetism; Boiling Point; Solubility in water.
Elements, mixtures and compounds
Elements are a basic (simple) kind of matter. They can’t be broken down into simpler parts and still keep their properties because they are in the simplest form. A solute is the substance that is dissolved in the solvent. Solubility refers to the ability of one substance to dissolve into another substance. Read more...iWorksheets :4Study Guides :1Vocabulary :2
Science worksheets: Solids, liquids and gases.
Solid, liquid, and gas are all states of matter. The molecules in solids are tightly packed together. The molecules in liquids are not as close as those in solids; they have a little more room to move around. The molecules in gases are far apart. Gases can fill any size room or any size container. Read more...iWorksheets :3Study Guides :1Vocabulary :1
Mixtures, solutions and compounds
Mixtures, unlike compounds, are the physical combination of different substances. Solutions are a type of mixture with at least one solute and solvent. In a solution, finely dissolved particles of a solute are dissolved by the solvent. Read more...iWorksheets :3Study Guides :1Vocabulary :1
4.D.1.c. Use data gathered to provide a reasonable explanation for the idea that the mass of a mixture is equal to the sum of the masses of its components.
Elements, mixtures and compounds
Elements are a basic (simple) kind of matter. They can’t be broken down into simpler parts and still keep their properties because they are in the simplest form. A solute is the substance that is dissolved in the solvent. Solubility refers to the ability of one substance to dissolve into another substance. Read more...iWorksheets :4Study Guides :1Vocabulary :2

MD.5.0. Physics: Students will use scientific skills and processes to explain the interactions of matter and energy and the energy transformations that occur

5.C.2. Electricity and Magnetism: Cite evidence supporting that electrical energy can be produced from a variety of energy sources and can itself be transformed into almost any other form of energy.

5.C.2.a. Research and identify various energy sources and the energy transforming devices used to produce electrical energy: Wind (generators, wind mills); Sun (solar cells); Water (turbines); Fossil fuels (engines).
Electromagnetism
The production of a magnetic field around an electrical current is called electromagnetism. The placement of an electric current in a preexisting magnetic field can cause motion. When this happens, electrical energy is transformed into mechanical energy. The use of electrical energy to produce mechanical energy is the principle behind the workings of an electric motor. Read more...iWorksheets :3Study Guides :1Vocabulary :1
5.C.2.b. Cite examples that demonstrate the transformation of electrical energy into other forms of energy.
Electromagnetism
The production of a magnetic field around an electrical current is called electromagnetism. The placement of an electric current in a preexisting magnetic field can cause motion. When this happens, electrical energy is transformed into mechanical energy. The use of electrical energy to produce mechanical energy is the principle behind the workings of an electric motor. Read more...iWorksheets :3Study Guides :1Vocabulary :1

5.C.3. Electricity and Magnetism: Identify and describe magnetic fields and their relationship to electric current.

5.C.3.a. Investigate and describe the magnetic fields surrounding various types of magnets using materials, such as iron filings and small compasses: A single bar magnet; Two bar magnets with like poles facing; Two bar magnets with opposite poles facing; A horseshoe magnet.
Magnetism
A magnet is any substance that attracts the element iron or anything with iron in it. All magnets have opposite ends or poles. These are referred to as the north and south poles. In addition, because of polarity, all magnets will point toward the magnetic north pole of the earth. While the greatest magnetic force is at the poles, there is some degree of magnetism all around a magnet. This is called the magnetic field. Read more...iWorksheets :4Study Guides :1Vocabulary :1
5.C.3.c. Describe how the electromagnet demonstrates the relationship of magnetism and electricity and identify common devices that demonstrate application of this relationship: Electric motors (fans, hair dryers, can openers); Electrical generators (turbine).
Electromagnetism
The production of a magnetic field around an electrical current is called electromagnetism. The placement of an electric current in a preexisting magnetic field can cause motion. When this happens, electrical energy is transformed into mechanical energy. The use of electrical energy to produce mechanical energy is the principle behind the workings of an electric motor. Read more...iWorksheets :3Study Guides :1Vocabulary :1

5.D.1. Wave Interactions: Identify and describe the relationships among the various properties of waves.

5.D.1.a. Cite examples to show that waves transfer energy from one place to another: Light; Sound; Earthquake waves.
Earthquakes
The theory of plate tectonics describes the movement of the plates of the lithosphere relative to each other. This movement creates forces that push and pull on the crust. Crustal rock can absorb and store energy, but only so much. There is a point at which the stress is more than the rock can hold and the rock breaks. When the rock breaks, the stored energy is released and this energy travels through the Earth. This sudden release of energy created when rocks break is called an earthquake Read more...iWorksheets :5Study Guides :1Vocabulary :6
The energy of waves
When a disturbance transfers energy from one place to another, this is referred to as a wave. Most waves, except for electromagnetic waves, require a substance or medium through which they can travel. This medium could be a solid, liquid or vapor like air. Waves requiring a medium are called mechanical waves. Amplitude: the maximum distance that the medium particles move away from their resting position when a wave is passing through. Read more...iWorksheets :3Study Guides :1Vocabulary :2
Light
When light hits an object, it either goes through easily, partially, or not at all. An object that lets most of the light through is said to be transparent. The colors we see depend upon which wavelengths of visible light get reflected back to our eyes. Objects appear white when they reflect all of light’s wavelengths and conversely, they look black when they reflect little or none of the wavelengths. This is why it is wise to wear light-colored clothing in the summer; your clothing doesn’t absorb the light. Read more...iWorksheets :4Study Guides :1Vocabulary :2
Plate Tectonics
The Earth's layers: crust, mantle, core. Plate tectonics is a scientific theory that describes the large-scale motion of plates of the Earth's crust over hot mantle rock. Plate tectonics are active on Earth since the very beginning. Read more...iWorksheets :3Vocabulary :3
Sound
Sound is the energy objects produce when they vibrate. Sound energy is a form of mechanical energy. The substance that the sound waves travel through is called the medium. A medium can be a solid, liquid or gas. In a longitudinal wave, the particles of the medium move back and forth, while the energy moves forward. Then the particles are pushed together, it is called compression. When the particles are spread apart, it is called rarefaction. Read more...iWorksheets :3Vocabulary :4
Light and Optics
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5.D.1.b. Measure and describe the wavelength, frequency, and amplitude of waves using: Water; Ropes; Springs.
The energy of waves
When a disturbance transfers energy from one place to another, this is referred to as a wave. Most waves, except for electromagnetic waves, require a substance or medium through which they can travel. This medium could be a solid, liquid or vapor like air. Waves requiring a medium are called mechanical waves. Amplitude: the maximum distance that the medium particles move away from their resting position when a wave is passing through. Read more...iWorksheets :3Study Guides :1Vocabulary :2
Sound
Sound is the energy objects produce when they vibrate. Sound energy is a form of mechanical energy. The substance that the sound waves travel through is called the medium. A medium can be a solid, liquid or gas. In a longitudinal wave, the particles of the medium move back and forth, while the energy moves forward. Then the particles are pushed together, it is called compression. When the particles are spread apart, it is called rarefaction. Read more...iWorksheets :3Vocabulary :4
5.D.1.c. Measure and describe the relationship between the frequency and the wavelength of a wave.
The energy of waves
When a disturbance transfers energy from one place to another, this is referred to as a wave. Most waves, except for electromagnetic waves, require a substance or medium through which they can travel. This medium could be a solid, liquid or vapor like air. Waves requiring a medium are called mechanical waves. Amplitude: the maximum distance that the medium particles move away from their resting position when a wave is passing through. Read more...iWorksheets :3Study Guides :1Vocabulary :2
Sound
Sound is the energy objects produce when they vibrate. Sound energy is a form of mechanical energy. The substance that the sound waves travel through is called the medium. A medium can be a solid, liquid or gas. In a longitudinal wave, the particles of the medium move back and forth, while the energy moves forward. Then the particles are pushed together, it is called compression. When the particles are spread apart, it is called rarefaction. Read more...iWorksheets :3Vocabulary :4

5.D.2. Wave Interactions: Provide evidence to demonstrate the relationship among the properties of waves using sound.

5.D.2.a. Investigate and describe that the pitch of sounds can be varied by changing the rate of vibration.
Sound and light energy
Sound is a type of energy that travels in waves which are caused by vibrations. Characteristics of Sound. Vibrations: movements made rapidly back and forth. Sound Waves: an invisible transfer of sound energy as it travels away from the energy source. Wavelength: the distance between a point on one sound wave and a similar point on another sound wave. Frequency: The number of vibrations in a period of time is called the frequency of a vibration. Volume: The loudness or quietness of a sound is its volume. Read more...iWorksheets :4Study Guides :1Vocabulary :2
Sound
Sound is a type of longitudinal wave. As it travels through its medium, the mediums particles show areas of compression and rarefaction. Sound, at room temperature, normally travels at a speed of 343m/s. At different temperatures, sound travels at different speeds. The speed of sound is also influenced by the density and elasticity of the medium. When the frequency of sound changes as its source moves in relationship to someone listening, this is called the Doppler Effect. Read more...iWorksheets :4Study Guides :1Vocabulary :1
Sound
Sound is the energy objects produce when they vibrate. Sound energy is a form of mechanical energy. The substance that the sound waves travel through is called the medium. A medium can be a solid, liquid or gas. In a longitudinal wave, the particles of the medium move back and forth, while the energy moves forward. Then the particles are pushed together, it is called compression. When the particles are spread apart, it is called rarefaction. Read more...iWorksheets :3Vocabulary :4
All About Energy
Energy is the ability to do work. There are two types of energy. One type of energy is energy that is waiting to happen but has not happened yet. This is called potential energy. Another type of energy is called kinetic energy. This type of energy is energy that is happening now. Read more...iWorksheets :5Study Guides :1Vocabulary :5
5.D.2.b. Identify and describe the relationship among frequency, wavelength, and pitch.
Sound and light energy
Sound is a type of energy that travels in waves which are caused by vibrations. Characteristics of Sound. Vibrations: movements made rapidly back and forth. Sound Waves: an invisible transfer of sound energy as it travels away from the energy source. Wavelength: the distance between a point on one sound wave and a similar point on another sound wave. Frequency: The number of vibrations in a period of time is called the frequency of a vibration. Volume: The loudness or quietness of a sound is its volume. Read more...iWorksheets :4Study Guides :1Vocabulary :2
Sound
Sound is a type of longitudinal wave. As it travels through its medium, the mediums particles show areas of compression and rarefaction. Sound, at room temperature, normally travels at a speed of 343m/s. At different temperatures, sound travels at different speeds. The speed of sound is also influenced by the density and elasticity of the medium. When the frequency of sound changes as its source moves in relationship to someone listening, this is called the Doppler Effect. Read more...iWorksheets :4Study Guides :1Vocabulary :1
Sound
Sound is the energy objects produce when they vibrate. Sound energy is a form of mechanical energy. The substance that the sound waves travel through is called the medium. A medium can be a solid, liquid or gas. In a longitudinal wave, the particles of the medium move back and forth, while the energy moves forward. Then the particles are pushed together, it is called compression. When the particles are spread apart, it is called rarefaction. Read more...iWorksheets :3Vocabulary :4
All About Energy
Energy is the ability to do work. There are two types of energy. One type of energy is energy that is waiting to happen but has not happened yet. This is called potential energy. Another type of energy is called kinetic energy. This type of energy is energy that is happening now. Read more...iWorksheets :5Study Guides :1Vocabulary :5
5.D.2.c. Observe and describe the relationship between amplitude and loudness.
Sound and light energy
Sound is a type of energy that travels in waves which are caused by vibrations. Characteristics of Sound. Vibrations: movements made rapidly back and forth. Sound Waves: an invisible transfer of sound energy as it travels away from the energy source. Wavelength: the distance between a point on one sound wave and a similar point on another sound wave. Frequency: The number of vibrations in a period of time is called the frequency of a vibration. Volume: The loudness or quietness of a sound is its volume. Read more...iWorksheets :4Study Guides :1Vocabulary :2
Sound
Sound is a type of longitudinal wave. As it travels through its medium, the mediums particles show areas of compression and rarefaction. Sound, at room temperature, normally travels at a speed of 343m/s. At different temperatures, sound travels at different speeds. The speed of sound is also influenced by the density and elasticity of the medium. When the frequency of sound changes as its source moves in relationship to someone listening, this is called the Doppler Effect. Read more...iWorksheets :4Study Guides :1Vocabulary :1
Sound
Sound is the energy objects produce when they vibrate. Sound energy is a form of mechanical energy. The substance that the sound waves travel through is called the medium. A medium can be a solid, liquid or gas. In a longitudinal wave, the particles of the medium move back and forth, while the energy moves forward. Then the particles are pushed together, it is called compression. When the particles are spread apart, it is called rarefaction. Read more...iWorksheets :3Vocabulary :4
All About Energy
Energy is the ability to do work. There are two types of energy. One type of energy is energy that is waiting to happen but has not happened yet. This is called potential energy. Another type of energy is called kinetic energy. This type of energy is energy that is happening now. Read more...iWorksheets :5Study Guides :1Vocabulary :5

5.D.3. Wave Interactions: Investigate and cite the rules that govern behaviors of light.

5.D.3.a. Based on data generalize the law of reflection.
Light and Optics
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5.D.3.b. Cite evidence from observations and research to support the fact that something can be 'seen' when light waves emitted or reflected by it enter the eye.
The nervous system
The nervous system gathers information from inside and outside of the body, responds to the information that it gathers and helps to maintain homeostasis. There are three different types of neurons: sensory neurons, interneurons, and motor neurons. The three different types of neurons will work together to carry messages all throughout the nervous system. Read more...iWorksheets :3Study Guides :1Vocabulary :5
5.D.3.c. Based on observations predict the change in the direction (refraction) of light as it travels from one material to another.
Light and Optics
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5.D.3.d. Cite evidence that the amount of light energy absorbed or reflected depends on the color of the object illuminated.
Light
When light hits an object, it either goes through easily, partially, or not at all. An object that lets most of the light through is said to be transparent. The colors we see depend upon which wavelengths of visible light get reflected back to our eyes. Objects appear white when they reflect all of light’s wavelengths and conversely, they look black when they reflect little or none of the wavelengths. This is why it is wise to wear light-colored clothing in the summer; your clothing doesn’t absorb the light. Read more...iWorksheets :4Study Guides :1Vocabulary :2

MD.6.0. Environmental Science: Students will use scientific skills and processes to explain the interactions of environmental factors (living and non-living) and analyze their impact from a local to a global perspective.

6.A.1. Natural Resources and Human Needs: Recognize and compare how different parts of the world have varying amounts and types of natural resources and how the use of those resources impacts environmental quality.

6.A.1.a. Identify and describe natural resources as: Land; Fossil Fuels; Forests; Water; Wind; Minerals; Wildlife.
Minerals of Earth's crust
Minerals are solid elements formed naturally in the Earth’s surface. Every mineral has a unique chemical composition – a mix of the chemicals that formed it. Rocks are made up of minerals, sometimes more than one kind of mineral! Read more...iWorksheets :3Study Guides :1Vocabulary :4
Earth's oceans
Oceans are a natural resource for salt and the fish and other sea animals we eat. Ocean Currents. Ocean Tides, Trenches, Mid-Ocean Ridges, Seamounts, The Flat Abyssal Plains, The Continental Shelf. Read more...iWorksheets :3Study Guides :1Vocabulary :1
Weather, Weather patterns and climate
How do clouds form? Main types of clouds. Precipitation. Air Pressure. What are the Four Most Influential Air Masses that Affect the Weather in North America? What is needed for a thunderstorm to occur? Thunderstorm key ingredients: Moisture, Instability and Uplift. What is a hurricane? What is a tornado? What is climate? Climate Zones: Polar zone, Temperate zone, Tropical zone. The location of the zone determines its climate. Read more...iWorksheets :3Study Guides :1Vocabulary :5
Minerals
A mineral, by definition, must meet four criteria. It must: be a naturally occurring substance, be a solid substance, have an internal crystal structure and have been formed by inorganic processes (in other words, it cannot be formed by an organism). A rock, by comparison, is composed of one or more minerals or organic material (such as coal). Read more...iWorksheets :4Study Guides :1Vocabulary :3
Earth's Fresh Water
Fresh water moves over the surface by an interconnected system of streams and rivers. Small streams that feed water into larger rivers are called tributaries. Rivers are closely interconnected and flow from higher to lower elevations where the water collects in larger and larger rivers until it ultimately flows into the oceans. Read more...iWorksheets :3Study Guides :1Vocabulary :2
Understanding Weather
The global winds in the Northern hemisphere curve to the right. The global winds in the Southern hemisphere curve to the left. One would expect them to travel in a straight line, but the Earth’s rotation on its axis causes them to curve. This is due to the Coriolis effect. Read more...iWorksheets :4Study Guides :1Vocabulary :3
Earth`s Climate
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How Does the Earth's Surface Change?
Earth Structure and Processes Read more...iWorksheets :2Vocabulary :3
6.A.1.b. Identify and describe the distribution of natural resources around the Earth
Earth's oceans
Oceans are a natural resource for salt and the fish and other sea animals we eat. Ocean Currents. Ocean Tides, Trenches, Mid-Ocean Ridges, Seamounts, The Flat Abyssal Plains, The Continental Shelf. Read more...iWorksheets :3Study Guides :1Vocabulary :1

6.B.1. Environmental Issues: Recognize and explain that human-caused changes have consequences for Maryland's environment as well as for other places and future times.

6.B.1.a. Identify and describe a range of local issues that have an impact on people in other places.
Earth's Fresh Water
Fresh water moves over the surface by an interconnected system of streams and rivers. Small streams that feed water into larger rivers are called tributaries. Rivers are closely interconnected and flow from higher to lower elevations where the water collects in larger and larger rivers until it ultimately flows into the oceans. Read more...iWorksheets :3Study Guides :1Vocabulary :2
6.B.1.c. Identify and describe that ecosystems can be impacted by human activities: Protection of the Chesapeake Bay watershed; Resource acquisition and use; Land use decisions (agriculture, mining, and development); Recycling; Use and disposal of toxic substances.
Earth's Fresh Water
Fresh water moves over the surface by an interconnected system of streams and rivers. Small streams that feed water into larger rivers are called tributaries. Rivers are closely interconnected and flow from higher to lower elevations where the water collects in larger and larger rivers until it ultimately flows into the oceans. Read more...iWorksheets :3Study Guides :1Vocabulary :2
Our impact on earth
Any waste substance that is added to a natural system in amounts greater than that natural system can break it down or eliminate it is called pollution. The waste substance itself is the pollutant. A natural resource that can be replenished is called a renewable resource. In most cases, water is a renewable resource. Read more...iWorksheets :3Study Guides :1Vocabulary :1
Earth`s Climate
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