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Sound

Sound. Review. sounds produce waves or vibrations vibrations can be transferred through solids, liquids, or gases and received on another end. String Telephone. Hypothesis. What you think will happen when one person whispers into one of the cups?

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Sound

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  1. Sound

  2. Review • sounds produce waves or vibrations • vibrations can be transferred through solids, liquids, or gases and received on another end.

  3. String Telephone

  4. Hypothesis • What you think will happen when one person whispers into one of the cups? • What will happen if the string is pulled tight? • What will happen if the string is lose? • What will happen if the string is bent around a corner or over a table?

  5. How to make a string phone • Take two cups, two toothpicks, and one piece of string per group • Tie a toothpick to each end of the string. • Poke toothpick through the end of the cup • Pull the string tight so the toothpick rests on the inside of the cup

  6. Rules • Keep noise level at a minimum. • Only can say the words “good, good vibrations” into the telephones. • Groups of 2 • http://www.youtube.com/watch?v=B0yoiBYbT2I

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