Learn all about your body's most important muscle: your heart! This simple diagram is a great way to introduce your little biologist to his heart.

Children will connect their understanding of gases to real-world items as they circle all of the pictures showing gases.

Kids write down examples of solids, liquids, and gases in this 1st grade physical science worksheet that focuses on the states of matter.

Explore grasslands and their fauna in this thought-provoking worksheet!

Natural resources are crucial for sustaining life on the planet. Encourage your child to get to thinking about plants, one of Earth's natural resources.

Can your child think of ways people use soil? Get her excited about Earth science with a lesson on this crucial natural resource.

Learners will discover a simple overview of the human muscle system in this introductory worksheet.

Shake up your science studies with this worksheet about earthquakes.

Listen closely! Do you hear anything? Identify examples of sound energy in this kindergarten and first-grade worksheet!

Explore the lush plant life of the tropical rainforest in this second- and third-grade worksheet!

Prepare for an exciting experiment with this cut-and-paste lab safety worksheet for first and second graders!

Is a feather liquid, soft, spotted, or heavy? Practice describing everyday objects, or matter, with this second-grade science worksheet!

Learners will discover what heat waves are, and how they are connected to global warming, in this two-page earth sciences worksheet.

How do trunks, claws, and flippers help animals? Discover how animals use different parts of their body to meet their needs in this kindergarten and first-grade life science worksheet!

Kids practice identifying solids for a lesson on the states of matter in this 1st grade physical science worksheet.

Kids practice identifying liquids for a lesson on the states of matter in this 1st grade physical science worksheet.

What do a key, a goldfish, and a tortoise shell have in common? Find out with this second-grade science worksheet!

Analyze fossils with this engaging third-grade science worksheet!

Hey, did you hear that? Explore real-life examples of sound energy with this kindergarten and first-grade worksheet!

Dip your toes into a marsh habitat in this second- and third-grade worksheet!

A natural resource is something that we use that occurs naturally in the environment. Teach your child about the densest and heaviest natural resource: rocks!

Use your powers of prediction to project the future movement of playground objects!

Did you know that having a pouch or a shell can help an animal meet its needs? Learn how animals use different parts of their body with this matching worksheet for kindergarteners and first graders!

See if you can identify the objects that let light pass through them with this kindergarten and first-grade worksheet!

Deserts might seem inhospitable to life, but there are actually plenty of animals that can live there!

Explore a tropical rainforest habitat and its inhabitants with this engaging worksheet for third graders!

Explore the little details of the great outdoors in this charming, hands-on worksheet!

All living things need water to survive. Listed are some of the ways we use water: can your child think of others?

Have fun learning about food chains in this charming science worksheet!