Practice classifying different animals in this engaging life science worksheet, created for second and third graders!

Discover the differences between gravity and magnetism in this forceful worksheet!

Think toads and frogs are the same? Think again! Check out this breakdown of the differences between the two, complete with a quiz to check your new knowledge.

Who will win the marble race in this two-page physical science worksheet?

Take a peek into a temperate forest ecosystem with this food web worksheet for fourth and fifth graders!

Test your knowledge of electrical energy with this third- and fourth-grade worksheet!

Discover how seeds move to new places with this cut-and-paste worksheet for second and third graders!

Match forms of energy to common examples in this third- and fourth-grade science worksheet!

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

Connect forms of energy to real-life scenarios in this third- and fourth-grade worksheet!

Take a science-filled trip to an amusement park in this third- and fourth-grade worksheet!

Get to know each of the Seven Summits, then organize their heights into a graph.

Ready for a truly electrifying lesson in science? Find out how electricity forms and what makes a lightning bolt!

There are many endangered species all around the world. Read about the Amur leopard and why it's endangered with this information page.

Young astronomers unscramble words to reveal the heavens in this fun space science worksheet.

This worksheet is all about the U.S. space mission of Friendship 7, and will help kids with reading comprehension and U.S. history knowledge all at once.

What is the water cycle? We're glad you asked! Learn about this amazing natural system that's been working for billions of years.

Discover some fun facts about the sun — and bring it to life with color — with this astronomy worksheet!

Brush up on some physics vocabulary with this energy word search!

On this worksheet, kids learn all about the look and location of Uranus, and they get to cut out a picture to use in their own Solar System diagram.

Searching for a worksheet that will give your kid help with his science skills? This printable will challenge his knowledge of the metric system.

Learn more about the animals in the swamp food chain, and find out how each living thing in a swamp ecosystem needs another to survive.

Space enthusiasts will love learning about Freedom 7, the first manned American space mission.

In this worksheet, children will learn about the intricate "waggle dance" honeybees use to communicate to each other.

Explore magnetism with this colorful science worksheet for third and fourth graders!

Discover examples of weathering, erosion, and deposition with this fourth-grade worksheet!

Are chickens mammals, fish, or birds? Sort animals by their traits in this informative life science worksheet!

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

Use your detective skills to predict the motion of a seesaw in this third-grade worksheet!

These printable Valentine's Day cards are perfect for a kid who's in love with animals and science!