Who will win the marble race in this two-page physical science worksheet?

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

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

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

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

Use your detective skills to predict the motion of a seesaw in this third-grade worksheet!

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

Use a seesaw to see what happens when opposing forces become balanced or unbalanced!