Young scholars participate in a role-play activity to determine how whales use the properties of echolocation to communicate.

Students participate in a variation of the game charades to explain how whales use their bodies to communicate.

Students demonstrate how a whale uses echolocation to track food and identify one other animal that also uses echolocation. In this echolocation lesson, students play a game where one child (the whale) is blindfolded and gives a signal...

Students identify the different parts of a wave. In this physics instructional activity, students explain how animals communicate using sound waves. They discuss the effect of Navy's sonar on dolphins and whales.