Tuesday, September 23, 2008

Matter

air is matter. it has mass and volume. because when you blew up a balloon, the air actually fills up inside the balloon to make it bigger. And air actually have weight, which is air pressure. so i think that air is really a matter.
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1 comment:

P. Smith said...

But I don't feel pressure on me? Does that mean it is still there?

September 24, 2008 at 7:21 PM

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