Ever wonder about how to make the perfect paper airplane? Learn about the four forces that affect flight with paper airplane physics!

Budding inventors can get a fun review of the simple machines with this word search.

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

How many machines can you find around the house? You may find them where you least expect it!

Create your own gravity-powered roller coaster in this creative worksheet!

Explore magnetism with this colorful science worksheet for third and fourth graders!

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