For 5th, 6th & 7th STD. Students Science Experiment: Making Music with Water


Making Music with Water
Have you ever tried making music with glasses or bottles filled with water? I bet you
favourite band hasn’t. Experiment with your own special sounds by turning glasses of water
into instruments, make some cool music and find out how it works.
What you’ll need:
 5 or more drinking glasses or glass bottles
 Water
 Wooden stick such as a pencil
1. Line the glasses up next to each other and fill them with different amounts of water.
The first should have just a little water while the last should almost full, the ones in
between should have slightly more than the last.
2. Hit the glass with the least amount of water and observe the sound, then hit the
glass with the most water, which makes the higher sound?
3. Hit the other glasses and see what noise they make, see if you can get a tune going
by hitting the glasses in a certain order.
What’s happening?
Each of the glasses will have a different tone when hit with the pencil, the glass with the
most water will have the lowest tone while the glass with the least water will have the
highest. Small vibrations are made when you hit the glass, this creates sound waves which
travel through the water. More water means slower vibrations and a deeper tone.

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