Science Fair Project:

Echoes: How Sound Waves are Reflected and Absorbed

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Materials:

Find locations where you can produce an echo:

  • Gymnasium
  • Church
  • Dance hall
  • Banquet hall
  • Garage

Procedure

  1. Choose at least three locations to produce your echoes. You should choose at least two, large rooms that are empty and a large room filled with furniture.
  2. Stand at one end of the room and yell out, “Hello”. You can yell out whatever you would like.
  3. Did you hear an echo?
  4. Repeat for the remaining locations.
  5. What was different about the rooms that produced an echo and those that did not?
Author: Melissa Bautista
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