Did you know that sound is actually caused by movement? Vibrations of particles create the sound that we hear.

How fast does sound travel? Help your child figure out the physics of sound waves with this informative worksheet.

Learn more about the skin (and the science behind pimples -- ew!) in this printable life science diagram.

Discover how dolphins use sound to see in this fascinating worksheet!

Color this Awesome Anatomy coloring page that focuses on how the ears work to hear sound.

Ever wonder why sounds change as they move away from us? Learn all about the Doppler effect with this physics worksheet.

It's a bird! It's a plane! It's Physics Man! Test your knowledge of the physical world with this fun questionnaire that takes physics to a super-heroic level.

Children are introduced to the concept of the speed of light in this illustrated worksheet.

Use this heart anatomy sheet to learn all about your heart and how it works.

This bright and colorful worksheet helps your child bring the technical terms of the bones in his legs down to size.

Learn how energy changes forms with this fourth- and fifth-grade physical science worksheet!