Young inventors will have a blast with this worksheet on compound machines! Use three of the six machines together to make work easier.

Consider the factors that affect magnetic forces in this informative third- and fourth-grade worksheet!

Discover some of the fascinating properties of gravity by studying one of Newton's famous laws, the Law of Gravitation.

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

Determine which magnets have the strongest force in this third- and fourth-grade worksheet!

Put your prediction proficiency to the test in this third-grade physical science worksheet!

Use your powers of prediction to project the future movement of playground objects!