This video investigates sound, how it is produced, how it travels, its specific properties, and its everyday uses. This video also explores the different interactions between sound waves, including the reflection and combination of sounds. Other terminology includes: elasticity, density, hertz, frequency, pitch, ultrasonic, infrasonic, Doppler Effect, intensity, loudness, and decibel.

Originally released by Visual Learning, 2001. Streaming video file encoded with permission for digital streaming by Infobase on April 18, 2015.

What is Sound? (2:01); --The Traveling of Sound (1:03); -- Speed of Sound (1:05); -- The Speed of Sound (1:16); -- Elasticity, Density, and the Speed of Sound (1:37); -- Loudness and Intensity (1:12); -- Pitch and Frequency (2:09); -- The Doppler Effect (1:10); -- Quality of Sound (0:51); -- Interactions of Sound Waves (1:45); -- Summing Up (1:04); -- Video Quiz (3:09); -- Credits: Sound (0:55);.