Motors
in this expeirement we were making solens. We wrapped wire around a straw attached it to a battery and put a needle in.
when the wire wasn't attached to the battery and you put the needle in nothing happened. But when the battery was attached the straw got really hot when you put the needle in.
also it sparked in my hand so i threw it was an accident I'm so sowwy
Monday, December 17, 2007
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