What do a raven, a bat, and a wolf have in common? Similar skeletal structures! In this Halloween worksheet, middle-grade students will explore homologous structures in different animals. 

Why do some desert animals have large ears? Why do others have scales? Learn the answers to these questions and more with this life science worksheet!

Uncover secrets of the past with this third-grade worksheet about fossils!

Learn about some of the major U.S. watersheds in this fascinating science and geography worksheet!

How could a fin, large ears, or sharp claws benefit an animal? Find out how body parts can help animals meet their needs in this engaging kindergarten and first-grade worksheet!

Explore a forest habitat with this life science worksheet for second graders!

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

Test your child's knowledge of plant life--more specifically, trees--with this colorful, cut-and-paste tree chart.

Discover what lives in the depths of the sea in this second- and third-grade habitat worksheet!

Dive into a coral reef ecosystem with this life science worksheet!

Decide which plants could live in a grassland with this second- and third-grade worksheet!

Step into the swamp ecosystem with this engaging life science worksheet!

Explore the strength of magnetic forces with this worksheet for third and fourth graders!

Gear up to go into the science lab with the help of this activity!

Become an energy investigator in this electrifying science worksheet!

Apply concepts of energy and motion to marbles in this fourth-grade worksheet!

Continents collide in this earthshaking science worksheet!

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

Learn about the identifying characteristics of the four main types of air masses in this informative science worksheet!

Determine which plants would survive in a pond with this second- and third-grade worksheet!

Explore Newton's third law of motion with this engaging science worksheet!

Stroll through the flora of a temperate deciduous forest in this third-grade worksheet!

Warm up to engineering and thermal energy transfer in this creative worksheet!

Leap through the life cycle of a wood frog with this cut-and-paste activity!

This Earth Day, learn about conservation and the environment while you enjoy solving a fun puzzle! 

Spot the saboteur by testing DNA in this exciting middle-grade worksheet!