Do you know the functions of the primary organs in the human body? Put your knowledge to the test with this fourth- and fifth-grade crossword!

Did you know that our skin is actually an organ? In fact, it's the largest organ in our bodies! Learn about our skin with this anatomy sheet.

If your kid's a dino buff, chances are he knows Triceratops. With a neat fact about this classic dino, this dot to dot is not only fun, it's educational, too.

How far away is the Red Planet from the sun? Find out with this great Solar System printable.

Children label the eight planets of our Solar System in this simple astronomy worksheet.

In this recycle worksheet, kids color the different recyclable objects, then match them up with their corresponding bin. Try our recycle worksheet on Earth Day.

You have over 600 muscles in your body! Kids can try this muscle anatomy word search featuring 14 important muscles.

Kids learn important plant and animal cell vocabulary as they plug the words into their correct spots and complete the puzzle.

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.

Children learn about the food cycle in a rain forest as they color in a scene of snakes, butterflies, leopards, and other forest-dwelling creatures.

Ever wonder what the earth is made of? Help your little scientist to examine the different types of soil particles with this worksheet.

The mockingbird is internationally known, but it's also the most treasured bird in the state of Florida. Color in Florida's state bird in this coloring page.

Color in the Cardinal, the state bird of Kentucky, in this state bird coloring page. Make sure to use a bright red crayon to color in those famous feathers.

The Oregon state bird is the Western Meadowlark. First graders will love learning fun facts and adding color to the picture of this bird!

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

During the Gold Rush, people weren't sure if they found gold or something else, and these easy steps would help them be sure.

Earth has many different land and water features—can you recognize them? Test your knowledge with this crossword puzzle for third and fourth graders!

Have you ever noticed how some animals walk, while others fly or swim? Study the ways animals move in this preschool and kindergarten worksheet!

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

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