clix - Lesson 1: Sounds Around Us
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Introduction Adding Buddy Exploring Platform Exploring Units
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Lesson 1: Sounds Around Us
  • 1.1 Where are these sounds coming from?
  • 1.2 A science classroom like yours
  • 1.3 Activity- Make sound(s)
  • 1.4 Vibration cause sound
  • 1.5 Seeing vibrations
  • 1.5 Seeing vibrations (continued)

    Where are the vibrations?

    You may have experienced sound produced by moving a palm of your hand briskly near your ear, by moving a long stick briskly, by whipping a towel, by waving a flag, by clapping, by hitting of a stone on the ground etc. In these examples, you can hear the sound but it's hard to see the vibrations.
     
    So, it is possible that sound is produced but you cannot see the vibration or vice versa.



     

    For further exploration :

    1.6

    Hold a bottle opening near your ear and listen. Now fill some water in it and listen. Did the sound change? Now hold a glass or a vessel to your ear. What do you notice? How is the sound produced?

     


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