Introduce your child to the inclined plane, one of the six simple machines that helps to make work easier for us!

Did you know that the screw is actually one of the six simple machines? This handy machine helps to make work easier!

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!

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