HOMESCHOOL AND DISTANCE LEARNING
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Lesson 4: Sound Waves

Animals and sound waves - posted from Bexley, OH

An excellent video with a short quiz about sound, sound waves, and how animals use them. Give it a minute. The first 3 minutes the sound is wonky.


bbc echolacation - posted from ORMOND BEACH, FL

actually used the slinky to show the vibrations
what is echolocation? bbc earth unplugged


Echolocation used by blind - posted from Roseville, CA

Fascinating video of how a blind man uses echolocation to move around his environment and "see" what is around him.


The Magic School Bus - posted from Arlington, TX

The episode "Going Batty" is about bats and echolocation and fits in nicely with this lesson.