Why do some objects make loud sounds when dropped, while others make quiet sounds?

Pull the lever on learning! Get to know one of the six simple machines with this worksheet about the lever.

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!

Did you know that an elevator is actually one of the six simple machines? Help your child understand how the pulley works.

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

I spy with my little eye... six simple machines! Here's a fun way to help your child review the simple machines.

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.

Wedge your way into physics fun! You and your child can learn a bit about one of the six simple machines with this worksheet all about the wedge.

Crank out a better understanding of simple machines with this worksheet all about the wheel and axle!

What do a key, a goldfish, and a tortoise shell have in common? Find out with this second-grade science worksheet!

Practice describing different objects and substances in this colorful worksheet!

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

Introduce your budding scientist to chemical reactions with this simple and fun science experiment!