Alabama Courses of Study 7th Grade Science Activities
Printable Seventh Grade Science Worksheets, Study Guides and Vocabulary Sets.
Our Solar SystemSolar systems begin in the dust and gas clouds found in between the stars. The dust is composed of elements like iron and carbon. The gas is hydrogen and helium. These dusty clouds are called nebulae. Here these particles start to come together to form planets. Read more...iWorksheets: 6Study Guides: 1Vocabulary Sets: 3 The Sun-Earth-Moon SystemThe Earth is simultaneously spinning on its axis(rotation) and revolving around the sun. As viewed from space, the Earth rotates counter-clockwise. This is called prograde rotation. Planets that spin clockwise are said to have retrograde rotation. Read more...iWorksheets: 4Study Guides: 1Vocabulary Sets: 5 Agents of Erosion and DepositionFreeForces of weathering and erosion are constantly reshaping Earth's surface. Erosion includes the chemical and physical breakdown of rocks and their transport from their point of origin to another location. Blowing wind, running water, flowing ice and and gravity are the forces that erode rock and sculpt the landscape. Read more...iWorksheets: 3Study Guides: 1Vocabulary Sets: 4 Exploring the Oceans/OceanographyFreeThe oceans are highly comples environments. The oceans consist of different zones and habitats. As one moves deeper, the amount of light decreases, water temperature decreases and water pressure increases. There changing factors determine the zones and habitats and which organisms can live in each. Read more...iWorksheets: 3Study Guides: 1Vocabulary Sets: 5 EarthquakesThe 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: 6Study Guides: 1Vocabulary Sets: 7 VolcanoesThe 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 Sets: 4 ClimateOne key factor affecting climate is latitude. Because the Earth is a globe, the sun’s rays hit the equator more directly than they do near the poles. A second factor is that the Earth is tilted at 23.5 degrees on its axis as it rotates around the sun. As it does, the Northern and Southern hemispheres are either pointing toward or away from the sun’s rays. Consequently, lands near the equator have smaller temperature fluctuations throughout the year. The climate is predictably warm and humid. Read more...iWorksheets: 3Study Guides: 1Vocabulary Sets: 6 Energy and energy resourcesMechanical energy is the energy of a moving object such as an airplane in flight. Thermal energy or heat energy: When a sidewalk warms up from the sun it now has thermal energy. Electrical energy speaks for itself. Whenever electricity is used, its energy is being used. Chemical energy is the energy that gets released when chemical bonds are broken. Electromagnetic energy is energy that travels in waves. Read more...iWorksheets: 3Study Guides: 1Vocabulary Sets: 2 Energy: Forms and ChangesEnergy 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 Sets: 3 SoundSound 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 Sets: 4 ForcesForce is a pull or a push and its strength is measured in units called newtons and represented by the symbol F. Forces can act in combination and produce what is referred to as net force. Gravity is a type of force that pulls objects towards each other and toward the earth. Newton’s first law is that an object that is at rest will remain at rest and that an object in motion will continue in motion. Read more...iWorksheets: 5Study Guides: 1Vocabulary Sets: 1 MotionWhen motion occurs, there is speed and velocity. Speed is calculated by dividing the distance traveled by the time it took to travel. Velocity has an additional component. Velocity tells you how fast an object is going and where it is going. Therefore, if two objects have the same speed, but are going in different directions, they will have different velocities. Read more...iWorksheets: 5Study Guides: 1Vocabulary Sets: 1 Acids, bases and saltsAn acid is a compound that is defined by its physical and chemical properties. Acids taste sour and react with metals and polyatomic ions called carbonates. A carbonate is a charged cluster of Carbon and Oxygen atoms. In addition, when tested with blue litmus paper, acids turn the paper red. A base or hydroxide, like an acid, is also defined by its properties. Bases taste bitter, are slippery to the touch and turn red litmus paper blue. An example of a base is NaOH or sodium hydroxide. Read more...iWorksheets: 5Study Guides: 1Vocabulary Sets: 1 Mixtures, solutions and compoundsMixtures, 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 Sets: 1 Chemistry in our worldChemistry literally affects us twenty four hours a day. At any one moment in our bodies, thousands of chemical reactions are occurring. All of these reactions are controlled by catalyst-like chemicals called enzymes. Most of the chemical digestion of food we eat gets done in our small intestines with enzymes. Outside our bodies, chemicals and their reactions help us in many practical ways. Composites are mixtures of two or more substances, many of which are polymers with different properties, combine to give us better products. Read more...iWorksheets: 3Study Guides: 1Vocabulary Sets: 2 Technology in our worldEngineers use technology to meet human demands and to provide solutions to our problems. Of all the types of consumer goods, clearly electronics seems to have benefited most from technological development. One example of this is in the area of wireless technology. Cell phones using networks of microwave generating cell towers have dramatically changed the way we communicate. Read more...iWorksheets: 3Study Guides: 1Vocabulary Sets: 1 Elements and the periodic tableElements are the purest form of matter and can not be broken down into any other substance by either a physical or chemical change. There are about 114 elements and they are organized on a modern Periodic Table of the Elements. The Elements are organized by their atomic numbers from top to bottom and left to right. Read more...iWorksheets: 5Study Guides: 1Vocabulary Sets: 2 Work and machinesWork is the exertion of force through a distance. The formula for its calculation is: work =force x distance. For an example, if 5 newtons of force were applied for 5 meters, the amount of work done would be 25Nm. Mechanical advantage = output force/input force. For example, if a machine takes the force coming in and multiplies it three times, the mechanical advantage would be 3. Read more...iWorksheets: 5Study Guides: 1 AL.7.LS. LIFE SCIENCE
The World of Life ScienceScientific 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 Six Kingdoms of LifeThe 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 :3 From Molecules to Organisms: Structures and Processes
Cell TransportActive 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 :2 7.LS.1. Engage in argument from evidence to support claims of the cell theory.
Cells: The Basic Units of LifeThe 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 :5 Cell ProcessesNucleic acids are organic molecules that contain the instructions for all of the cell functions. They are made from carbon, hydrogen, oxygen, nitrogen, and phosphorus. There are two types of nucleic acids. DNA (Deoxyribonucleic acid), the genetic material of an organism, and RNA (ribonucleic acid), the important material in producing proteins within the cell. Read more...iWorksheets :4Study Guides :1Vocabulary :7 7.LS.2. Gather and synthesize information to explain how prokaryotic and eukaryotic cells differ in structure and function, including the methods of asexual and sexual reproduction.
Cells: The Basic Units of LifeThe 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 :5 Cell ProcessesNucleic acids are organic molecules that contain the instructions for all of the cell functions. They are made from carbon, hydrogen, oxygen, nitrogen, and phosphorus. There are two types of nucleic acids. DNA (Deoxyribonucleic acid), the genetic material of an organism, and RNA (ribonucleic acid), the important material in producing proteins within the cell. Read more...iWorksheets :4Study Guides :1Vocabulary :7 Cell ReproductionFreeThe process where one cell forms two identical daughter cells is called cell division. There are three stages of the cell cycle: interphase, mitosis, and cytokinesis. DNA stands for DeoxyriboNucleic Acid. Read more...iWorksheets :3Study Guides :1Vocabulary :8 7.LS.3. Construct an explanation of the function (e.g., mitochondria releasing energy during cellular respiration) of specific cell structures (i.e., nucleus, cell membrane, cell wall, ribosomes, mitochondria, chloroplasts, and vacuoles) for maintaining a stable environment.
Cells: The Basic Units of LifeThe 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 :5 Cell ProcessesNucleic acids are organic molecules that contain the instructions for all of the cell functions. They are made from carbon, hydrogen, oxygen, nitrogen, and phosphorus. There are two types of nucleic acids. DNA (Deoxyribonucleic acid), the genetic material of an organism, and RNA (ribonucleic acid), the important material in producing proteins within the cell. Read more...iWorksheets :4Study Guides :1Vocabulary :7 Ecosystems: Interactions, Energy, and Dynamics
7.LS.5. Examine the cycling of matter between abiotic and biotic parts of ecosystems to explain the flow of energy and the conservation of matter.
Ecosystems, food chains and food websUnderstanding food chains and food webs requires understanding the flow of energy and food sources among living things on Earth. A food chain represents a series of organisms connected by where they obtain their energy. A food web is made up of many different food chains in an ecosystem. A food web helps us understand how organisms are interrelated within an ecosystem. Read more...iWorksheets :3Study Guides :1Vocabulary :5 7.LS.5.a. Obtain, evaluate, and communicate information about how food is broken down through chemical reactions to create new molecules that support growth and/or release energy as it moves through an organism.
Providing Fuel and TransportationFood 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 :3 7.LS.5.b. Generate a scientific explanation based on evidence for the role of photosynthesis and cellular respiration in the cycling of matter and flow of energy into and out of organisms.
Plant ProcessesPhotosynthesis 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 :2 Photosynthesis and RespirationWhat is Photosynthesis? Photosynthesis is the process that green plants use to capture energy from the Sun and convert it to food. Plants produce oxygen and food in the form of sugar during the process of Photosynthesis. It occurs in two stages. The first stage occurs when light is captured by the chlorophyll pigments in the leaves and converted to energy in the chloroplast. Read more...iWorksheets :3Vocabulary :3 7.LS.6. Analyze and interpret data to provide evidence regarding how resource availability impacts individual organisms as well as populations of organisms within an ecosystem.
Ecosystems, food chains and food websUnderstanding food chains and food webs requires understanding the flow of energy and food sources among living things on Earth. A food chain represents a series of organisms connected by where they obtain their energy. A food web is made up of many different food chains in an ecosystem. A food web helps us understand how organisms are interrelated within an ecosystem. Read more...iWorksheets :3Study Guides :1Vocabulary :5 7.LS.7. Use empirical evidence from patterns and data to demonstrate how changes to physical or biological components of an ecosystem (e.g., deforestation, succession, drought, fire, disease, human activities, invasive species) can lead to shifts in populations.
Our impact on earthAny 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 7.LS.8. Construct an explanation to predict patterns of interactions in different ecosystems in terms of the relationships between and among organisms (e.g., competition, predation, mutualism, commensalism, parasitism).
Bacteria and VirusesBacteria are prokaryotes, meaning that their DNA is in the cytoplasm because they do not have a nucleus. In addition to not having a nucleus, bacteria also do not have many of the other structures that are found in a eukaryotic cell. However, they still meet the criteria for being a living organism. There are three different shapes of bacteria: spiral, rod, and spherical shaped. Read more...iWorksheets :4Study Guides :1Vocabulary :4 Protists and FungiWhat is a protist? The protist is the most diverse Kingdom of classified organisms on Earth. Protists are combined into the same Kingdom because they are all eukaryotes and they live in a liquid environment. There are protists that are unicellular and multicellular. Read more...iWorksheets :4Study Guides :1Vocabulary :6 Ecosystems, food chains and food websUnderstanding food chains and food webs requires understanding the flow of energy and food sources among living things on Earth. A food chain represents a series of organisms connected by where they obtain their energy. A food web is made up of many different food chains in an ecosystem. A food web helps us understand how organisms are interrelated within an ecosystem. Read more...iWorksheets :3Study Guides :1Vocabulary :5 7.LS.9. Engage in argument to defend the effectiveness of a design solution that maintains biodiversity and ecosystem services (e.g., using scientific, economic, and social considerations regarding purifying water, recycling nutrients, preventing soil erosion).
Ecosystems, food chains and food websUnderstanding food chains and food webs requires understanding the flow of energy and food sources among living things on Earth. A food chain represents a series of organisms connected by where they obtain their energy. A food web is made up of many different food chains in an ecosystem. A food web helps us understand how organisms are interrelated within an ecosystem. Read more...iWorksheets :3Study Guides :1Vocabulary :5 7.LS.10. Use evidence and scientific reasoning to explain how characteristic animal behaviors (e.g., building nests to protect young from cold, herding to protect young from predators, attracting mates for breeding by producing special sounds and displaying colorful plumage, transferring pollen or seeds to create conditions for seed germination and growth) and specialized plant structures (e.g., flower brightness, nectar, and odor attracting birds that transfer pollen; hard outer shells on seeds providing protection prior to germination) affect the probability of successful reproduction of both animals and plants.
Introduction to PlantsAll plants are eukaryotes, with numerous cells, and they are all autotrophs, use photosynthesis to make food. Plants require sunlight to make food. : Plants have
adapted to living on land by having the ability to obtain water and other nutrients from the soil. Read more...iWorksheets :4Study Guides :1Vocabulary :5 Plant ProcessesPhotosynthesis 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 :2 Introduction to AnimalsScientists 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 :4 7.LS.11. Analyze and interpret data to predict how environmental conditions (e.g., weather, availability of nutrients, location) and genetic factors (e.g., selective breeding of cattle or crops) influence the growth of organisms (e.g., drought decreasing plant growth, adequate supply of nutrients for maintaining normal plant growth, identical plant seeds growing at different rates in different weather conditions, fish growing larger in large ponds than in small ponds).
Genetics - Study of HeredityHeredity 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 :9 Plant ProcessesPhotosynthesis 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 :2 Plant reproductionAn 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 :1 Fishes, Amphibians, and ReptilesFish 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 :5 Heredity: Inheritance and Variation of Traits
Genetics - Study of HeredityHeredity 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 :9 7.LS.12. Construct and use models (e.g., monohybrid crosses using Punnett squares, diagrams, simulations) to explain that genetic variations between parent and offspring (e.g., different alleles, mutations) occur as a result of genetic differences in randomly inherited genes located on chromosomes and that additional variations may arise from alteration of genetic information.
Genetics - Study of HeredityHeredity 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 :9 7.LS.13. Construct an explanation from evidence to describe how genetic mutations result in harmful, beneficial, or neutral effects to the structure and function of an organism.
Genetics - Study of HeredityHeredity 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 :9 7.LS.14. Gather and synthesize information regarding the impact of technologies (e.g., hand pollination, selective breeding, genetic engineering, genetic modification, gene therapy) on the inheritance and/or appearance of desired traits in organisms.
Genetics - Study of HeredityHeredity 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 :9 Unity and Diversity
Diversity of lifeThere 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 :4 7.LS.15. Analyze and interpret data for patterns of change in anatomical structures of organisms using the fossil record and the chronological order of fossil appearance in rock layers.
Weathering of rocks and soil formationWeathering 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 Standards
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