What is geothermal energy? Find out how we use parts of the Earth to provide us with renewable energy!

Fill in the blanks from the words listed in the word bank, then keep this sheet handy to prepare for tests and quizzes on life science and photosythesis.

Have you ever wondered why giraffes have long necks or why lions have sharp teeth? Find the answers in this third- and fourth-grade worksheet about adaptations!

Describe how things feel when you touch them and push on them!

Quiz your little scientist on his knowledge of the soil layers! He'll be reviewing some important earth science concepts and key terms.

"The hip bone is connected to the...?" Sing the song perfectly with the help of this worksheet on the skeletal system!

What makes a reptile different from an amphibian?  Learn all about animal classifications in this worksheet for second and third graders!

Children are introduced to the basic concepts of cloud formation in this diagramming and fill-in-the-blank activity.

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

Learn about the life cycle of a wood frog in this second- and third-grade worksheet!

Learn about the life cycle of a tomato plant in this worksheet for second and third graders!

Learn about the texture and hardness of different objects in this second-grade worksheet!

Get to know the basic parts of a plant with this first- and second-grade life science worksheet!

Peel back the layers of the earth in this earth science worksheet. Can you name all of them?

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

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

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

Practice describing different objects and substances in this colorful worksheet!