Saturday, December 13, 2008

12월둘째주-Thunder&Lighting




Thunder&Lighting


Activity 1:


1) Blow up the ballons

2) Rub the ballons against your head, carpet, or clothing(Woolen prefered)

3)Turn off the light

4)Rub the two ballons together


What happens?
*Light travels almost a million times faster than sound,
so we see the lightning before we hear the thunder

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