Things You'll Need:
- Styrofoam cups
- String
- Toothpicks
- Scissors
- Nail
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Step 1
Cut a string to any desired length. It should be long enough that the children aren't standing right next to each other when talking into the phone.
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Step 2
Take 2 toothpicks and tie one end of a string to each of them. Make sure to fasten the string tightly.
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Step 3
Poke a hole into the bottom of a styrofoam cup using a nail. Place the cup, brim down, on a table while doing this. This part should be done by adults only.
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Step 4
Push the toothpick and string into the hole and turn it sideways so it's wedged into the bottom of the styrofoam cup. Make sure that the string can't be pulled out.
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Step 5
Decorate the toy phone cups as desired. Let the kids get creative and personalize their toy phone.
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Step 6
Pull the phones taut and have a child stand at each end of it. One child talks into the cup while the other child holds the cup to his ear and listens. Explain to the children how the sound waves travel down the string.








