How the Ear Evolved

Bouncing Sound Waves

Sound Vibrations

Sound Waves

Quiz, Quiz, Quiz

Games and Activities

Louder, Louder, Louder

Pitch and Frequency

Hertz

Testing your own hearing

Sounds from Whales, Dolphins and Bats

Edison Phonograph

Free Computer, Smartphone and Tablet Apps to Use with the Book/Kit on Sound

Recording Sound -- History

Playing with Sound -- Squeaks, Crackles and Sound Effects

Comparing light and sound waves

Sound Through Solids, Liquids and Gases

The speed of sound

Does Sound Travel in a Vacuum?

The Doppler Shift

Detecting Sounds -- the Human Ear

Science, Technology and Sound

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