Today in science lab the children had the opportunity to make telephones! They learned that when you talk into the cup, your voice vibrates the string. The vibrations travel through the string like how waves travel through water. When the vibrations reach the other end, they vibrate the bottom of the cup and turn back into sound waves which your friend can hear. How many of you remember making these when you were little? :-)
Tuesday, October 21, 2008
Science Lab
Today in science lab the children had the opportunity to make telephones! They learned that when you talk into the cup, your voice vibrates the string. The vibrations travel through the string like how waves travel through water. When the vibrations reach the other end, they vibrate the bottom of the cup and turn back into sound waves which your friend can hear. How many of you remember making these when you were little? :-)
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