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

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

Who knew that the machines of the world are all made of just 6 simple machines working together? Introduce your child to simple machines with this worksheet.

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

Did you know plants make their own food? Discover how with this fill-in-the-blank worksheet for third and fourth graders!

Learn how seeds move with this second- and third-grade matching activity!

What is the purpose of a hard shell or a long neck? Discover different adaptations with this matching worksheet for second and third graders!

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

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

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

In this North American animal tracks worksheet, students hone their observation skills by matching tracks to animals.

Mix, boil, and toast your way to understanding energy transformations with this fourth-grade worksheet!

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