Colorado Academic Standards (CAS) 4th Grade Science Activities
Printable Fourth Grade Science Worksheets, Study Guides and Vocabulary Sets.
Earth - Inside and OutLet's look at the Earth from the inside out...
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The Earth is made up three main layers called crust, mantle, and core. Read more...iWorksheets: 5Study Guides: 1Vocabulary Sets: 9 Rocks and mineralsFreeWhat is in a Rock? Rocks are made up of many tiny pieces of minerals. What are Minerals? Minerals are natural, nonliving crystals. They come in many sizes, shapes, and colors. Types of Rocks: Sedimentary Rocks, Igneous Rocks, Metamorphic Rocks. The Rock Cycle. Read more...iWorksheets: 5Study Guides: 1Vocabulary Sets: 4 MatterMatter is ALL Around Us! Matter is anything that takes up space and has mass. Matter is made up of atoms. Atoms are the basic building blocks of matter and
make up all objects. Matter change states from solid, liquid, or gas. Read more...iWorksheets: 4Study Guides: 1Vocabulary Sets: 2 Animal Growth and ReproductionA life cycle is the stages of development an organism goes through starting from an egg to growing into an adult. Living organisms each have their own unique way of reproducing, giving birth, growing, and developing. Read more...iWorksheets: 5Study Guides: 1Vocabulary Sets: 5 Cells- The building blocks of living thingsFreeCells are building blocks of life. All living things are made of cells. A unicellular organism is made up of only one cell while multicellular organisms are made up of only cells. Read more...iWorksheets: 6Study Guides: 1Vocabulary Sets: 3 Classifying organismsScientific classification is the process of grouping living organisms into certain categories based on their characteristics, traits, and appearance. The order of scientific classification is kingdom, phylum, class, order, family, genus, and species. Each time we move to a different classification category, the groups get
smaller and more specific. Read more...iWorksheets: 3Study Guides: 1Vocabulary Sets: 4 Invertebrates - Animals without BackbonesAnimals are classified into groups so that scientists around the world can study them easier. Scientists classify animals into two major groups, vertebrates and invertebrates. Read more...iWorksheets: 5Study Guides: 1Vocabulary Sets: 5 Organ systemsYour body is made up of many organs and systems that all work together to keep your body running properly: The Skeletal System, The Muscular System, The Circulatory System, The Respiratory System, The Digestive System, The Nervous System, The Excretory System. Read more...iWorksheets: 3Study Guides: 1Vocabulary Sets: 5 Plant growth and reproductionProcess of Reproduction. Fertilization, Seeds. Lesson Checkpoints: What is one reason a plant has nectar? What do mosses and ferns produce instead of seeds? What is the female organ of a flower called? Read more...iWorksheets: 3Study Guides: 1Vocabulary Sets: 2 Plant Structure and functionPlants are living organisms made up of cells. Plants need sunlight and water to live and grow healthy. A plant has different parts that are all important in keeping the plant alive and healthy: Roots, Stem, Leaves. A plant’s roots collect water and minerals from soil for the rest of the plant. The main job of a plant’s stem is to carry water and minerals from the roots to the rest of the plant. Read more...iWorksheets: 3Study Guides: 1Vocabulary Sets: 4 Vertebrates - Animals with BackbonesScientists classify animals into two categories depending on if the animal has a backbone or not. As you know, invertebrates are animals that do NOT have a backbone and vertebrates are animals that DO have a backbone. Vertebrates are divided by scientists into five classes: fish, amphibians, reptiles, birds, and mammals. Read more...iWorksheets: 5Study Guides: 1Vocabulary Sets: 4 Did you Know... 4th gradeDid you know? There are over 600 named muscles in the human body. Your HEART is considered a muscle, a cardiac muscle. The largest bone in your body is your femur, which is your thigh bone. If you make a mark on the trunk of a tree, it will remain the same distance from the ground! Read more...iWorksheets: 3Study Guides: 1 Hands-on Lab Skills/Science InquiryWhen you conduct an investigation, you may make predictions, interpret your findings, draw conclusions, and justify your conclusions. When you conduct an experiment, you should collect data to help justify your conclusions. During an investigation, you may formulate and justify your predictions based on cause and effect relationships. A cause makes something else happen. An effect is what happens because of the cause. Read more...iWorksheets: 3Study Guides: 1 Math in ScienceWhether you are measuring, calculating, creating graphs and charts, or using numbers in any way… that’s using your math skills. During many science investigations you may have to measure the length, width, height, or weight of different objects. You also may need to measure the temperature of the air or different liquids when completing a scientific investigation as well. Read more...iWorksheets: 3Study Guides: 1 Science in our worldHave you ever seen a meteor shower? Meteors are small fragments of debris from space that enter the Earth's atmosphere at extremely high speed. They then turn into a vapor r leaving a streak of light that disappears quickly. You hear on the radio that a high air pressure system will be moving in tomorrow, which means there is a very good chance of clear skies. Read more...iWorksheets: 3Study Guides: 1Vocabulary Sets: 1 Weather and ClimateMany factors affect the weather such as the sun, atmosphere, temperature, water, and air pressure. When air moves from an area of high pressure to a place with low pressure, WIND is created. The movement and interaction of air masses cause most weather conditions. Climate: The word climate refers to the typical weather throughout the year in the same area. Read more...iWorksheets: 5Study Guides: 1Vocabulary Sets: 4 CO.1. Physical Science
1.1. Energy comes in many forms such as light, heat, sound, magnetic, chemical, and electrical. Students can:
1.1.a. Identify and describe the variety of energy sources
SoundSound is energy that travels in a wave that is caused by vibrations. Vibrations are movements made rapidly back and forth. Vibrations travel through the air and into your ear. You hear sounds when vibrating air causes your eardrum to vibrate. Read more...iWorksheets :3Study Guides :1Vocabulary :1 Force, motion and energyMotion is the process of an object changing place or position. A force is a push or pull upon an object. Speed refers to the rate an object changes position. To accelerate means to go faster; decelerate means to slow down. Read more...iWorksheets :4Study Guides :1Vocabulary :3 Electricity and magnetismElectricity is the flow of electrical charge. Atoms are made of three different particles, of which some have a positive charge, some have a negative charge, and some have no charge at all. Static Electricity is the imbalance of positive or negative charges between objects. If two objects have opposite charges, they’ll pull toward each other. Read more...iWorksheets :4Study Guides :1Vocabulary :2 Light and SoundLight is a form of energy that travels in waves. A reflection occurs when light rays bounce off a surface, such as when you see your reflection in a mirror. Absorption is when an object takes in light wave. Refraction is when light bends moving from one medium to another. Sound is a type of energy that travels in waves that is caused by vibrations. Vibrations are movements made rapidly back and forth. Read more...iWorksheets :3Study Guides :1Vocabulary :3 Properties of matter and EnergyWhat is matter? Matter is anything that takes up space and has mass. Kinetic energy is energy that is happening now; it is energy in motion. Potential energy is energy that is waiting to happen; it is stored energy. How does heat get transferred: By conduction, by convection and by radiation. Read more...iWorksheets :3Study Guides :1Vocabulary :2 Sound and light energySound 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 All About EnergyEnergy 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 :6Study Guides :1Vocabulary :4 1.1.b. Show that electricity in circuits requires a complete loop through which current can pass
Electricity and magnetismElectricity is the flow of electrical charge. Atoms are made of three different particles, of which some have a positive charge, some have a negative charge, and some have no charge at all. Static Electricity is the imbalance of positive or negative charges between objects. If two objects have opposite charges, they’ll pull toward each other. Read more...iWorksheets :4Study Guides :1Vocabulary :2 1.1.c. Describe the energy transformation that takes place in electrical circuits where light, heat, sound, and magnetic effects are produced
Electricity and magnetismElectricity is the flow of electrical charge. Atoms are made of three different particles, of which some have a positive charge, some have a negative charge, and some have no charge at all. Static Electricity is the imbalance of positive or negative charges between objects. If two objects have opposite charges, they’ll pull toward each other. Read more...iWorksheets :4Study Guides :1Vocabulary :2 CO.2. Life Science
2.1. All living things share similar characteristics, but they also have differences that can be described and classified. Students can:
2.1.a. Use evidence to develop a scientific explanation of what plants and animals need to survive
How do plants grow?Plants need many essential things in order to grow, such as: water, air, nutrients, sunlight, and warm temperature. Plants need their space too! If a plant grows too close to other plants, it may not grow healthy and strong, because the plants may compete over the available water, nutrients, and space in the soil for their roots to grow. Read more...iWorksheets :4Study Guides :1Vocabulary :2 Did you Know... 3rd gradeThere are so many amazing scientific facts out there, waiting to be discovered by you! Check out some of the incredible ‘Did You Know? facts that have to do with many of the science topics you learn about in 3rd Grade. Read more...iWorksheets :3Study Guides :1 2.2. Comparing fossils to each other or to living organisms reveals features of prehistoric environments and provides information about organisms today. Students can:
2.2.a. Use evidence to develop a scientific explanation for:
2.2.a.1. What fossils tell us about a prehistoric environment
Fossils and extinct animalsMany animals have become extinct over millions of years. Extinct means no longer living on Earth. Animas that are extinct include dinosaurs, saber-toothed tigers, and dodo birds. Read more...iWorksheets :3Study Guides :1Vocabulary :4 2.2.b. Analyze and interpret data to generate evidence about the prehistoric environment
Fossils and extinct animalsMany animals have become extinct over millions of years. Extinct means no longer living on Earth. Animas that are extinct include dinosaurs, saber-toothed tigers, and dodo birds. Read more...iWorksheets :3Study Guides :1Vocabulary :4 2.2.c. Evaluate whether reasoning and conclusions about given fossils are supported by evidence
Fossils and extinct animalsMany animals have become extinct over millions of years. Extinct means no longer living on Earth. Animas that are extinct include dinosaurs, saber-toothed tigers, and dodo birds. Read more...iWorksheets :3Study Guides :1Vocabulary :4 2.3. There is interaction and interdependence between and among living and nonliving components of ecosystems. Students can:
2.3.a. Use evidence to develop a scientific explanation on how organisms adapt to their habitat
How animals grow and change and liveAnimals have certain traits which help them survive in their environment. These survival traits are called adaptations. Many adaptations are inherited, which means they are passed on from the parents of animal. Many animals have adaptations for eating such as the way a bird’s beak is shaped. Read more...iWorksheets :4Study Guides :1Vocabulary :2 Introduction to animalsAnimals have particular body parts and structures to help them survive in their Earth environment. For instance, animals have certain body parts such as legs or wings that help them move, and mouths or trunks or beaks that help them drink water. Read more...iWorksheets :3Study Guides :1Vocabulary :4 Plant Responses and AdaptationsA plant can respond to the conditions of its environment. A plant can change its position and grow in a certain direction or manner to meet its survival needs and adapt to a varying environment. Read more...iWorksheets :3Study Guides :1Vocabulary :2 Animal Diversity and AdaptationsFreeHere are some examples of the systems that animals and humans have in common: Integumentary system, Muscular system, Endocrine system, Nervous system, Circulatory system, Respiratory system, Digestive system, Excretory System, Reproductive system, Immune system, Skeletal System. Read more...iWorksheets :3Study Guides :1Vocabulary :5 2.3.b. Identify the components that make a habitat type unique
Where plants and animals liveAn environment is everything that surrounds a living thing or person. Everything that lives on Earth lives in a certain environment. Living things get everything they need to survive from their environment. An environment also includes nonliving things. Read more...iWorksheets :3Study Guides :1Vocabulary :2 Ecosystems and changes in ecosystemsWhat is an ecosystem? An ecosystem is the living and nonliving components of an environment and the way they interact with each other and their environment. There are several different ecosystems on the Earth. Read more...iWorksheets :3Study Guides :1Vocabulary :3 Energy and ecosystemsAn ecosystem includes all the living and non-living things in an area. This includes populations and communities of many different animals. Read more...iWorksheets :3Study Guides :1Vocabulary :3 Cycles of life and BiomesThe Nitrogen Cycle Process: Nitrogen is taken in by plants through their roots, animals eat plants, and the nitrogen is passed along the food chain to animals. Herbivores get nitrogen by eating plants. Carnivores get nitrogen by eating herbivores. Nitrogen is returned to the soil when an organism dies – decomposers break down the dead organisms and change the nitrogen compounds in the dead organism’s body into the kind plants can use. Read more...iWorksheets :4Study Guides :1Vocabulary :2 2.3.c. Compare and contrast different habitat types
Where plants and animals liveAn environment is everything that surrounds a living thing or person. Everything that lives on Earth lives in a certain environment. Living things get everything they need to survive from their environment. An environment also includes nonliving things. Read more...iWorksheets :3Study Guides :1Vocabulary :2 Ecosystems and changes in ecosystemsWhat is an ecosystem? An ecosystem is the living and nonliving components of an environment and the way they interact with each other and their environment. There are several different ecosystems on the Earth. Read more...iWorksheets :3Study Guides :1Vocabulary :3 Energy and ecosystemsAn ecosystem includes all the living and non-living things in an area. This includes populations and communities of many different animals. Read more...iWorksheets :3Study Guides :1Vocabulary :3 Cycles of life and BiomesThe Nitrogen Cycle Process: Nitrogen is taken in by plants through their roots, animals eat plants, and the nitrogen is passed along the food chain to animals. Herbivores get nitrogen by eating plants. Carnivores get nitrogen by eating herbivores. Nitrogen is returned to the soil when an organism dies – decomposers break down the dead organisms and change the nitrogen compounds in the dead organism’s body into the kind plants can use. Read more...iWorksheets :4Study Guides :1Vocabulary :2 2.3.d. Create and evaluate models of the flow of nonliving components or resources through an ecosystem
Science Worksheets: Water. All living things need water to survive and to grow. For example, plants need water to make their own food, while fish need to live in water. The human body is made up of about 2/3 water. Water comes in three forms: liquid, solid, and gas. Read more...iWorksheets :3Study Guides :1Vocabulary :1 Food webs/food chainsWe all need energy. Every living organism on Earth needs energy to live, including plants, animals and us! The main energy source for all living things on Earth is the Sun. Read more...iWorksheets :4Study Guides :1Vocabulary :3 Earth's WatersDid you know that three quarters (3/4) of Earth is covered by water? Freshwater is water containing only a very little amount of salt. Oceans are made of salt water. Ninety-seven percent (97%) of the Earth’s water is saltwater. Throughout the water cycle, water can be solid, liquid, and a gas. Read more...iWorksheets :3Study Guides :1Vocabulary :2 Interactions among living thingsAn 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 :3 Cycles of life and BiomesThe Nitrogen Cycle Process: Nitrogen is taken in by plants through their roots, animals eat plants, and the nitrogen is passed along the food chain to animals. Herbivores get nitrogen by eating plants. Carnivores get nitrogen by eating herbivores. Nitrogen is returned to the soil when an organism dies – decomposers break down the dead organisms and change the nitrogen compounds in the dead organism’s body into the kind plants can use. Read more...iWorksheets :4Study Guides :1Vocabulary :2 2.3.e. Make a plan to positively impact a local ecosystem
Natural resourcesNatural resources are found on the Earth and are important to living things. Some natural resources come from below the Earth’s surface. Some natural resources are nonrenewable, which means that can not be replaced. Some natural resources are renewable. Three examples of natural resources we have in abundance on Earth are: sunlight, air, and water. Read more...iWorksheets :3Study Guides :1Vocabulary :1 CO.3. Earth Systems Science
3.1. Earth is part of the solar system, which includes the Sun, Moon, and other bodies that orbit the Sun in predictable patterns that lead to observable paths of objects in the sky as seen from Earth. Students can:
3.1.a. Gather, analyze, and interpret data about components of the solar system
Earth in spaceFreeThe Sun, which is a star, is Earth's source of heat and light. The earth travels in circles around the Sun. The Earth’s rotation every 24 hours results in day and night on Earth. Read more...iWorksheets :3Study Guides :1Vocabulary :1 The solar systemThe Sun is a gigantic star that is made up of hot gases called plasma. The solar system includes the Sun, planets, the moons of each planet, as well as other objects that revolve around the Sun. Read more...iWorksheets :4Study Guides :1Vocabulary :1 Our Solar system and beyondWhat Can Be Found in the Solar System? A planet is a large body that revolves around the Sun. Asteroids, comets and meteors are made of pieces of rock and ice. Asteroids are small pieces of rock which orbit around the Sun. Comets are made of ice and rock. The “tail” of a comet is made of vaporized gases and dust that flow behind them as they fly through space at a VERY fast pace! Read more...iWorksheets :3Study Guides :1Vocabulary :3 The solar systemAll 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 3.1.b. Utilize direct and indirect evidence to investigate the components of the solar system
The solar systemThe Sun is a gigantic star that is made up of hot gases called plasma. The solar system includes the Sun, planets, the moons of each planet, as well as other objects that revolve around the Sun. Read more...iWorksheets :4Study Guides :1Vocabulary :1 Our Solar system and beyondWhat Can Be Found in the Solar System? A planet is a large body that revolves around the Sun. Asteroids, comets and meteors are made of pieces of rock and ice. Asteroids are small pieces of rock which orbit around the Sun. Comets are made of ice and rock. The “tail” of a comet is made of vaporized gases and dust that flow behind them as they fly through space at a VERY fast pace! Read more...iWorksheets :3Study Guides :1Vocabulary :3 The solar systemAll 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 3.1.c. Gather, analyze, and interpret data about the Sunrise and Sunset, and Moon movements and phases
Earth in spaceFreeThe Sun, which is a star, is Earth's source of heat and light. The earth travels in circles around the Sun. The Earth’s rotation every 24 hours results in day and night on Earth. Read more...iWorksheets :3Study Guides :1Vocabulary :1 Our Solar system and beyondWhat Can Be Found in the Solar System? A planet is a large body that revolves around the Sun. Asteroids, comets and meteors are made of pieces of rock and ice. Asteroids are small pieces of rock which orbit around the Sun. Comets are made of ice and rock. The “tail” of a comet is made of vaporized gases and dust that flow behind them as they fly through space at a VERY fast pace! Read more...iWorksheets :3Study Guides :1Vocabulary :3 Earth's freshwater and atmospherePlanet Earth (the planet on which we happen to live) spins on an imaginary line called an axis. One spin around on its axis is called a revolution. As the earth rotates, the areas facing the Sun slowly change, and that means the time of day and the temperatures change.The sun is the main energy supply for the water cycle. Read more...iWorksheets :4Study Guides :1Vocabulary :4 3.1.d. Develop a scientific explanation regarding relationships of the components of the solar system
Earth in spaceFreeThe Sun, which is a star, is Earth's source of heat and light. The earth travels in circles around the Sun. The Earth’s rotation every 24 hours results in day and night on Earth. Read more...iWorksheets :3Study Guides :1Vocabulary :1 Our Solar system and beyondWhat Can Be Found in the Solar System? A planet is a large body that revolves around the Sun. Asteroids, comets and meteors are made of pieces of rock and ice. Asteroids are small pieces of rock which orbit around the Sun. Comets are made of ice and rock. The “tail” of a comet is made of vaporized gases and dust that flow behind them as they fly through space at a VERY fast pace! Read more...iWorksheets :3Study Guides :1Vocabulary :3 Minerals of Earth's crustMinerals 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 :2 Standards
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