вторник, 29 марта 2016 г.

Science for kids - make an eerie sounds device.

Science for kids - make an eerie sounds device.
Science for kids - make an eerie sounds device.

Making an eerie sound device - science sparks
The eerie cup!

6. Cut a pice of paper towel to the size of a £5 note and wet in water


7. Fold this round the string at the top of the cup and pull down! (See the video clip) A pocket tissue also works well.


8. You can also make a silly chicken noise it you check out the video!



The Science bit


The cup acts like a sound board. If you rubbed the towel down the string without it, you would not hear any sound, but the cup amplifies the vibrations created by the movement and you get the sound!


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Original article and pictures take http://www.science-sparks.com/2011/10/24/making-eerie-sounds/ site


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