We learned lots today about sound and hearing.
Teacher showed us how to blow straws to get a great sound. The longer the straw the lower the sound and the shorter the straw the higher the sound.
We have a whistle in class with a sliding piece. When you pull out the sliding piece the whistle looks longer and has a lower sound. When you push the sliding piece in the whistle looks shorter and has a higher sound. We know that sounds are vibrations. We have seen some great films about this too.
Try out this great sound game:
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