Free Science Worksheets for Kids

These free science worksheets are an easy way to explore new topics without adding loads of prep to your day.

The collection covers everything from human anatomy and animal life cycles to space, weather, rocks, and plants. You’ll find labeling activities, puzzles, coloring pages, games, and more for kids in kindergarten through 5th grade.

We’ve used many of these in our own homeschool over the years, either alongside our science curriculum or simply when a topic sparked an interest.

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Free Life Science Worksheets

Explore the human body, animals, and living things with these life science worksheets for elementary students. The activities include anatomy diagrams, labeling worksheets, puzzles, and vocabulary practice for kids in kindergarten through 5th grade.

Human Body & Anatomy Worksheets

These printable anatomy worksheets are a great starting point for learning about the human body. Kids can explore major organs and body systems through labeling activities, diagrams, word puzzles, and more.

• Start with these human body systems worksheets to explore the major systems and what they do.
• Review organs and body systems with a human body systems crossword puzzle.
• Practice key anatomy vocabulary with this body systems word search.
• Label the major bones with this skeletal system labeling worksheet.
• Learn about glands and hormones with an endocrine system worksheet.
• Explore the body’s immune defenses with a lymphatic system labeling worksheet.
• Identify major muscles with this muscular system worksheet.
• Learn about the heart, blood vessels, and blood flow with a circulatory system worksheet.
• Follow the path food takes through the body with this digestive system labeling worksheet.
• Identify the lungs and other key structures with a respiratory system labeling worksheet.
• Explore the brain, spinal cord, and nerves with this nervous system labeling worksheet.

Animal Anatomy Worksheets

These animal anatomy worksheets give kids a closer look at the body parts and physical features of insects, mammals, birds, reptiles, amphibians, and sea creatures. Most include labeling or coloring activities, making them easy to add to an animal or life science unit.

• Explore insect anatomy with this parts of an ant worksheet.
• Identify wings, ears, and other features with a parts of a bat worksheet.
• Label features including wings, antennae, and a stinger with this parts of a bee worksheet.
• Explore butterfly anatomy with a parts of a butterfly coloring sheet.
• Identify the different body parts with this parts of a caterpillar worksheet.
• Learn the external features of a bird with a parts of a chicken worksheet.
• Explore the anatomy of a crustacean with this parts of a crab worksheet.
• Label amphibian features with a parts of a frog worksheet.

• Identify the features of a hibernating mammal with this groundhog body parts worksheet.
• Explore a unique sea creature with this parts of a jellyfish worksheet.
• Learn about beetle anatomy with a parts of a ladybug coloring page.
• Label the external features of this flightless bird with a parts of a penguin worksheet.
• Explore features that help animals survive in the Arctic with a parts of a polar bear worksheet.
• Identify the external features of a mammal with this parts of a rabbit worksheet.
• Label antlers, hooves, and other features with a parts of a reindeer worksheet.
• Explore marine reptile anatomy with a parts of a sea turtle coloring sheet.
• Identify fins and other external features with a parts of a shark coloring sheet.
• Learn the basic anatomy of an arachnid with a parts of a spider coloring page.
• Label the external features of a bird with this parts of a turkey printable.

For younger learners, browse our free science worksheets for preschoolers for simpler science activities.

Life Cycle Worksheets

These printable life cycle worksheets help kids learn how animals grow and change through each stage of development. You’ll find diagrams, sequencing activities, and coloring life cycle activities covering insects, mammals, birds, amphibians, and marine animals.

• Follow each stage from egg to adult with the life cycle of an ant worksheet.
• Explore how bats grow and develop with the life cycle of a bat worksheet.
• Learn the stages from egg to adult bee with the bee life cycle printable.
• Add a creative review activity with the bee life cycle coloring page.
• Explore metamorphosis with a butterfly life cycle worksheet.
• Review each stage with the life cycle of a butterfly coloring sheet.
• Learn how birds develop with a life cycle of a chicken worksheet.
• Reinforce the different stages with a chicken life cycle coloring page.

• Explore the development of a marine animal with a crab life cycle worksheet.
• Follow the transformation from egg to adult with a life cycle of a frog worksheet.
• Review each stage with a frog life cycle coloring page.
• Explore the stages of a bird’s development with the life cycle of a goose PDF.
• Learn how a hibernating mammal grows with a life cycle of a groundhog printable.
• Follow the stages of this nocturnal mammal with a hedgehog life cycle worksheet.
• Explore insect development with a ladybug life cycle worksheet.
• Review the stages through coloring with a ladybug life cycle coloring page.
• Learn how penguins grow from egg to adult with a life cycle of a penguin worksheet.
• Explore the development of an Arctic mammal with a polar bear life cycle worksheet.
• Follow the stages from newborn to adult with a life cycle of a rabbit worksheet.
• Learn how reindeer grow and develop with a life cycle of a reindeer worksheet.
• Explore the journey from egg to adult with a sea turtle life cycle worksheet.
• Review the stages with a sea turtle life cycle coloring page.
• Discover how spiders grow and develop with a spider life cycle worksheet.
• Explore the stages from egg to adult bird with a life cycle of a turkey worksheet.

Pair these activities with our favorite science books for homeschooling to explore these topics in more depth.

Animal Science Worksheets

These animal science worksheets help kids explore different species, compare physical features, and learn about habitats and adaptations. They’re an easy addition to elementary science lessons about mammals, birds, insects, reptiles, and marine life.

• Compare different species and their characteristics with the types of bats worksheet.
• Explore bear species, habitats, and adaptations with the types of bears worksheet.
• Practice identifying different species with the bird identification worksheet.
• Compare wing patterns and different species with the types of butterfly worksheet.
• Discover different nocturnal predators with the types of owls worksheet.
• Learn about different cold-weather birds with the types of penguins worksheet.
• Compare species and their physical features with the types of sharks worksheet.
• Explore the differences between common arachnids with the types of spiders worksheet.
• Compare different reptiles and their characteristics with the types of snakes worksheet.

Space & Astronomy Worksheets

Explore the moon, planets, astronauts, and space travel with these printable astronomy activities for kids. There’s a mix of worksheets, puzzles, coloring pages, and games for learning about the solar system and building space vocabulary.

• Learn the eight lunar phases with these phases of the moon worksheets.
• Review lunar vocabulary with a phases of the moon word search.
• Explore the solar system with these planet coloring pages.
• Practice identifying the planets with a planet matching game.
• Review solar system vocabulary with a planets word search.
• Add a creative activity with these astronaut coloring sheets.
• Encourage kids to imagine life in space with an If I Were an Astronaut worksheet.

For a more structured approach, explore our favorite free elementary science curriculum options.

Earth Science Worksheets

These Earth science worksheets help kids explore our planet through weather, water, rocks, plants, habitats, and the environment. Use them individually or combine several activities for a broader elementary Earth science unit.

Weather & Water Cycle

• Introduce weather patterns and conditions with these weather worksheets for kindergarten.
• Practice weather vocabulary with a weather memory match game.
• Learn about evaporation, condensation, and precipitation with these water cycle worksheets.
• Review the stages through a creative activity with a water cycle coloring sheet.

Rocks & Geology

• Explore how rocks change over time with these rock cycle worksheets.
• Compare igneous, sedimentary, and metamorphic rocks with a types of rocks worksheet.
• Reinforce the stages of the rock cycle with a rock cycle coloring page.

Plants, Habitats & the Environment

• Explore different ecosystems and the animals that live there with a habitat coloring page.
• Follow plant growth from seed to mature plant with a life cycle of a plant worksheet.
• Identify roots, stems, leaves, flowers, and other structures with a parts of a plant worksheet.
• Review how plants grow with a plant life cycle coloring page.
• Explore how pumpkins grow with a life cycle of a pumpkin worksheet.
• Review each stage with a pumpkin life cycle coloring page.
• Follow how a root vegetable grows with a life cycle of a carrot coloring page.
• Explore environmental themes with an Earth Day memory game.
• Take science outdoors with an environmental scavenger hunt printable.
• Talk about caring for our planet with these Earth Day coloring pages.
• Explore how evergreen trees grow with a Christmas tree life cycle printable.
• Review the stages with a Christmas tree life cycle coloring sheet.
• Identify the main features of an evergreen with a parts of a Christmas tree printable.
• Explore the structure of a familiar fruit with a parts of an apple coloring page.
• Learn about pumpkin anatomy with a parts of a pumpkin worksheet.

Science Vocabulary & Review Activities

Mix things up with our free science Scattergories printable, a quick game for practicing science terms and categories.

You can also try a chemistry word search or explore more science vocabulary games for easy review activities.

Introduce the steps scientists use to ask questions and investigate ideas with a printable scientific method worksheet.

Seasonal Science Activities

Add science to holiday lessons with these themed science activities. They’re an easy way to bring seasonal topics into elementary science without needing a separate lesson.

• Add some spooky science to October lessons with this Halloween science worksheet.
• Bring science into your fall lessons with this Thanksgiving science worksheet.

Last Updated on 22 August 2026 by Clare Brown