DVD

This program helps students learn the principles of sound, the range of human hearing, and significant terms as they discover the science behind everyday sounds. Travel deep into the ocean and high into the skies in search of creatures who use echolocation.

Through instrument, voice, and graphics, students easily discover how sounds are produced and students learn how we hear. Vibration is demonstrated, and children experiment with the way sound travels—in the air, through the ground, and under water. Teacher's Guide available in disk and online: www.schoolvideos.com