The students learned that we can make different sounds. Sounds can be loud or soft. Sounds are also different in pitch. Thicker or longer strings vibrate more slowly so they make a low sound. Thinner or shorter strings vibrate faster and they make a high sound. When we tried out the glasses the students could tell which was higher and lower.
Check out our video by clicking on the link below:
http://animoto.com/play/7eHqb9yEkHM1vahROZeI0g
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