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!

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!

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

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