Colorado Academic Standards (CAS) 1st Grade Science Activities
Printable First Grade Science Worksheets, Study Guides and Vocabulary Sets.
The SkyThe Sun is a large, hot ball of gas. It is a star. The Sun gives Earth light and heat. Living things need the Sun to live! The sun’s rays shine on the moon at night. This makes the moon bright! The Earth is the third planet from Sun. As the Earth moves around the Sun it turns. This rotation causes night and day here on Earth. Read more...iWorksheets: 5Study Guides: 1Vocabulary Sets: 1 Force and motionWhat Makes Things Move? Forces make things move! A force is a push or pull that can make something move. Gravity is a force! Gravity is a force that pulls things down. Speed is how fast or how slow an object moves. Objects can move straight, up, down, to the left, or to the right. Objects can curve and swerve when they move too! Read more...iWorksheets: 3Study Guides: 1Vocabulary Sets: 1 Did you Know... 1st GradeAir is a nonliving thing. The air we breathe in is called oxygen. Herbivores are animals that only eat plants. Can you believe a HUGE dinosaur called a brachiosaurus was an herbivore? A whale is NOT a fish. It is a mammal that lives in the ocean. You have almost 10,000 taste buds in your mouth! These taste buds
help you TASTE food. You can taste things that are sweet, sour, salty, and bitter! Read more...iWorksheets: 3Study Guides: 1Vocabulary Sets: 2 Math in ScienceScientists use addition, subtraction, multiplication, and division. Scientists use GRAPHS too! Scientists use numbers when talking about the Earth and space too! For example: Scientists know that one rotation of Earth equals 24 hours. Read more...iWorksheets: 3Study Guides: 1 Science in our worldScience is used every day to make this world a great place to live! People use science to invent and create technology. Tools help us do different jobs and make the job easier to do. Technology we use to communicate with others: telephone, cell phone, computer/Internet. Read more...iWorksheets: 3Study Guides: 1Vocabulary Sets: 2 My sensesYou have five senses. Your Sense of SMELL. Your Sense of HEARING. Your Sense of TOUCH. Your Sense of SIGHT. Your Sense of TASTE. Scientists use their senses to study the world. You can use your senses to study the world too! Read more...iWorksheets: 7Study Guides: 1Vocabulary Sets: 1 CO.1. Physical Science
1.1. Solids and liquids have unique properties that distinguish them. Students can:
1.1.a. Analyze and interpret observations about solids and liquids and their unique properties
Light and soundWhere Does Light Come From? Light is brightness that comes from an object like a flashlight, a candle, a light bulb, or the Sun. How is Sound Made? Sound is made because of something vibrating. Vibrate means to move back and forth really fast. Read more...iWorksheets :3Study Guides :1Vocabulary :1 ElectricityElectricity is a form of energy. Electricity is what makes our TVs, radios, digital clocks, refrigerators, ovens and lights work! Electricity is created in large factories called power plants. Read more...iWorksheets :3Study Guides :1 MagnetsWhat is a Magnet? Magnets attract certain kinds of metal such as iron. A magnet has two poles, a north and south pole. Its north pole is on one end and its south pole is on the other end. What do magnets do? Magnets can attract an object. Attract means to pull towards. If something is magnetic, that means it can be attracted by a magnet. Read more...iWorksheets :3Study Guides :1Vocabulary :1 Hands-on Lab Skills/Science InquiryScientists use MANY different tools while they are observing and conducting experiments. Here are some tools scientists use: RULER, MEASURING CUP, CLOCK, HAND, LENS, THERMOMETER, BALANCE. Scientists often put objects into piles or groups based on their color, shape, texture, size and weight. Read more...iWorksheets :3Study Guides :1Vocabulary :2 Comparing matterWhat is matter? Matter is all around you. Matter is anything that takes up space. Mass is the amount of matter in an object. It is how much stuff an object is made of. Read more...iWorksheets :3Study Guides :1Vocabulary :1 1.1.b. Identify the similarities and differences of two or more groups of solids or liquids
Light and soundWhere Does Light Come From? Light is brightness that comes from an object like a flashlight, a candle, a light bulb, or the Sun. How is Sound Made? Sound is made because of something vibrating. Vibrate means to move back and forth really fast. Read more...iWorksheets :3Study Guides :1Vocabulary :1 ElectricityElectricity is a form of energy. Electricity is what makes our TVs, radios, digital clocks, refrigerators, ovens and lights work! Electricity is created in large factories called power plants. Read more...iWorksheets :3Study Guides :1 MagnetsWhat is a Magnet? Magnets attract certain kinds of metal such as iron. A magnet has two poles, a north and south pole. Its north pole is on one end and its south pole is on the other end. What do magnets do? Magnets can attract an object. Attract means to pull towards. If something is magnetic, that means it can be attracted by a magnet. Read more...iWorksheets :3Study Guides :1Vocabulary :1 Hands-on Lab Skills/Science InquiryScientists use MANY different tools while they are observing and conducting experiments. Here are some tools scientists use: RULER, MEASURING CUP, CLOCK, HAND, LENS, THERMOMETER, BALANCE. Scientists often put objects into piles or groups based on their color, shape, texture, size and weight. Read more...iWorksheets :3Study Guides :1Vocabulary :2 Comparing matterWhat is matter? Matter is all around you. Matter is anything that takes up space. Mass is the amount of matter in an object. It is how much stuff an object is made of. Read more...iWorksheets :3Study Guides :1Vocabulary :1 1.1.c. Classify solids and liquids based on their properties, and justify your choice based on evidence
Light and soundWhere Does Light Come From? Light is brightness that comes from an object like a flashlight, a candle, a light bulb, or the Sun. How is Sound Made? Sound is made because of something vibrating. Vibrate means to move back and forth really fast. Read more...iWorksheets :3Study Guides :1Vocabulary :1 ElectricityElectricity is a form of energy. Electricity is what makes our TVs, radios, digital clocks, refrigerators, ovens and lights work! Electricity is created in large factories called power plants. Read more...iWorksheets :3Study Guides :1 MagnetsWhat is a Magnet? Magnets attract certain kinds of metal such as iron. A magnet has two poles, a north and south pole. Its north pole is on one end and its south pole is on the other end. What do magnets do? Magnets can attract an object. Attract means to pull towards. If something is magnetic, that means it can be attracted by a magnet. Read more...iWorksheets :3Study Guides :1Vocabulary :1 Hands-on Lab Skills/Science InquiryScientists use MANY different tools while they are observing and conducting experiments. Here are some tools scientists use: RULER, MEASURING CUP, CLOCK, HAND, LENS, THERMOMETER, BALANCE. Scientists often put objects into piles or groups based on their color, shape, texture, size and weight. Read more...iWorksheets :3Study Guides :1Vocabulary :2 Comparing matterWhat is matter? Matter is all around you. Matter is anything that takes up space. Mass is the amount of matter in an object. It is how much stuff an object is made of. Read more...iWorksheets :3Study Guides :1Vocabulary :1 CO.2. Life Science
2.2. An organism is a living thing that has physical characteristics to help it survive. Students can:
2.2.b. Analyze and interpret data about the needs of plants and animals
Living and nonliving thingsWhat is a LIVING thing? If something is LIVING - it is alive! A plant is a living thing. An animal is a living thing. What is a NONLIVING thing? If something is a NONLIVING thing, it is not alive. Soil is a nonliving thing. A rock is a nonliving thing. Water is a nonliving thing. Read more...iWorksheets :4Study Guides :1Vocabulary :1 All about plantsWhat do plants need to grow? A plant needs: water, air, sunlight and room. How does a plant grow? A seed comes from an adult plant and falls to the ground. Once in the ground, a seed begins to grow in the soil. Roots grow from a seed down into the ground. A young plant grows up through the soil. Parts of a Plant: Roots, Stem, Leaves, Flower. Read more...iWorksheets :3Study Guides :1Vocabulary :1 All about animalsWhat Do Animals Need to Live? Animals need to: drink water, eat food, breathe air. Animals also need shelter. How do Animals Get Food? How do Different Animals Breath? Animals Grow and Change. How do Animals Stay Safe? Animal Body Parts. Read more...iWorksheets :4Study Guides :1Vocabulary :1 Animal groupsA MAMMAL is an animal. A REPTILE is an animal. An AMPHIBIAN is an animal. Worms are animals too! Insects – bugs! Insects are part of the animal family too! Some animals have four legs. Some animals have two legs. Animals have different coverings on their bodies. Some animals have fur… Read more...iWorksheets :3Study Guides :1Vocabulary :1 Where do animals live?Plants and animals live in a habitat. A habitat has all the things plants and animals need. An animal can find food in its habitat. An animal can get water from its habitat. Read more...iWorksheets :3Study Guides :1Vocabulary :1 Life cyclesWhat is a life cycle? A life cycle is the steps a living thing goes through as it grows from a baby into an adult. Read more...iWorksheets :5Study Guides :1 Food ChainsWhat is a Food Chain? A food chain is a chain of plant and animals in which
a plant or animal is eaten by the next animal on the chain. Read more...iWorksheets :4Study Guides :1Vocabulary :2 Human bodyYour body is made up of many parts: your hair, eyebrows, eyes, nose, cheeks, mouth, chin, ears, brain, skull, neck shoulders, arms, elbows, wrists, forearms, palms, fingers, hips, legs, knees, ankles, feet, toes, heels. Your organs and body parts work together to keep your body working well; they are a system. There are many systems or organs and body parts working together.Read more...iWorksheets :6Study Guides :1Vocabulary :2 Land, water, and airWhat Makes Up the Earth? Earth is made of land, water, and air. Earth has more water than land. Land on Earth can change. Weathering changes land. Water and ice causes weathering. Erosion can also change land. Erosion is when water and wind move rocks and soil. How Do We Use Air? All living things need air to live. How Do We Use Water? All living things need water to live too. Read more...iWorksheets :4Study Guides :1Vocabulary :1 Hands-on Lab Skills/Science InquiryScientists use MANY different tools while they are observing and conducting experiments. Here are some tools scientists use: RULER, MEASURING CUP, CLOCK, HAND, LENS, THERMOMETER, BALANCE. Scientists often put objects into piles or groups based on their color, shape, texture, size and weight. Read more...iWorksheets :3Study Guides :1Vocabulary :2 AnimalsFreeThere are many different kinds of animals. The five main groups of animals are: Fish, birds, mammals, reptiles and amphibians. Read more...iWorksheets :4Study Guides :1Vocabulary :1 How do plants and animals live together?Plants need air, water, sunlight, and room to grow in order to live.
Animals need air, water, food, and shelter in order to live. What is a Shelter? It’s a safe place for an animal! Read more...iWorksheets :3Study Guides :1 CO.3. Earth Systems Science
3.1. Earth's materials can be compared and classified based on their properties. Students can:
3.1.a. Identify and represent similarities and differences such as the texture, size, color, and shape of various materials on Earth
WeatherWhen someone asks, “What is the weather today?” you know what they are asking. They are asking what it is like outside. They want to know what nature is doing in your area – raining, snowing, blowing… How We Measure Weather: We measure temperature using a thermometer. A wind vane measures the direction of the wind. A rain gauge measures how much rain falls.Read more...iWorksheets :4Study Guides :1Vocabulary :2 The seasonsA season is a different time of year. There are four seasons: winter, spring, summer, and fall. The four seasons always come in the same order. Winter comes first in the year. Spring comes next. Summer is third. Fall is the fourth season. Seasons bring different types of weather. Read more...iWorksheets :4Study Guides :1Vocabulary :1 Land, water, and airWhat Makes Up the Earth? Earth is made of land, water, and air. Earth has more water than land. Land on Earth can change. Weathering changes land. Water and ice causes weathering. Erosion can also change land. Erosion is when water and wind move rocks and soil. How Do We Use Air? All living things need air to live. How Do We Use Water? All living things need water to live too. Read more...iWorksheets :4Study Guides :1Vocabulary :1 Rocks, Soil and waterWhat are Rocks? Rocks are solid objects found in nature. Rocks are made up of minerals. What is Soil? Soil is the loose material the covers much of the Earth. Soil is also nonliving. Soil can be made of clay, sand, and humus. All living things need WATER to survive and to grow. The movement and recycling of the Earth’s water is called the water cycle. Read more...iWorksheets :3Study Guides :1Vocabulary :2 3.1.c. Make predictions about how a material on Earth might be useful based on its properties
Earth's resourcesNatural resources are useful things that we can find on the Earth. Natural resources are important to living things, including us! Some examples of natural resources are water, soil, air, rocks, and Minerals. Read more...iWorksheets :3Study Guides :1Vocabulary :2 3.1.f. Analyze the impact of reducing, reusing, and recycling various materials
All about plantsWhat do plants need to grow? A plant needs: water, air, sunlight and room. How does a plant grow? A seed comes from an adult plant and falls to the ground. Once in the ground, a seed begins to grow in the soil. Roots grow from a seed down into the ground. A young plant grows up through the soil. Parts of a Plant: Roots, Stem, Leaves, Flower. Read more...iWorksheets :3Study Guides :1Vocabulary :1 Taking Care of EarthHow Can People Protect the Earth? We can use our resources wisely. That means we must use all resources carefully and not waste them. Do not waste water. Do not litter – throw trash away in a trash can. Do not put bad things in water. Bad things can pollute water. Remember the three R’s: Reduce, Reuse, and Recycle. Read more...iWorksheets :3Study Guides :1Vocabulary :2 Hands-on Lab Skills/Science InquiryScientists use MANY different tools while they are observing and conducting experiments. Here are some tools scientists use: RULER, MEASURING CUP, CLOCK, HAND, LENS, THERMOMETER, BALANCE. Scientists often put objects into piles or groups based on their color, shape, texture, size and weight. Read more...iWorksheets :3Study Guides :1Vocabulary :2 Using and saving natural resourcesNatural resources are found on the Earth and are important to living things. People, plants, and animals need air to live. Air is a natural resource that never runs out! Water is another natural resource that people and animals use – they drink water in order to survive. Plants also need water to grow. Some natural resources are renewable. Read more...iWorksheets :3Study Guides :1Vocabulary :2 Standards
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