vibration - movement that generate sound waves , liquid - Sound travels faster in this than in gases., echo - An object that reflects sound waves back to the source, vacuum - Sound cannot travel through this., echoes - An experiment that demonstrates sound reflection using hand claps., ground - A solid that transmits vibrations for a snake to detect its prey, air - The speed of sound in this medium is slower than in liquids, echolocation - Bats and dolphins use this to find prey, sonar - Device that helps ships navigate using sound waves. (, womb - Ultrasound is used to check the health of a baby in this, panel - Scientists use these to absorb reflected sound in a studio, thunder - The sound of lightning expanding air rapidly, whale - This animal uses sound waves to communicate across long distances, solid - The material in which sound travels fastest., voicebox - A structure in your throat that vibrates to produce sound, reflector - A parabolic device helps amplify this for bird recording, anechoic - A chamber that absorbs all sound for scientific testing,

Sound

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