Did you hear that? In this BrainPOP movie, Tim and Moby introduce you to the world of sound! In the movie, you’ll find out how sound and ocean waves are similar, yet different, as you learn about different kinds of waves. See how air molecules, air pressure, pitch, and vibration all play a part in everything you hear. Plus, you’ll be introduced to a cool mechanism designed to measure sound waves! Discover how fast sound can travel through mediums like air, water, and steel. And see how aquatic animals like whales use sound to communicate underwater! Hey, this sound movie sounds pretty cool, right?!