Polar Ice Caps Melting - global climate change
- Climate, Environment, Science news for kids
- July 11, 2014

Hey kids, have you ever wondered why you hear thunder after you see lightning? Or why the horn on a car sounds different when it’s coming toward you than when it’s moving away? Or why things sound different under water? It all has to do with sound waves! Anything that vibrates makes a sound. Try
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