Posted by hellen on Wednesday, February 4, 2009 at 9:04pm.
Density is the amount of matter contained within an object. For instance, a cannonball would have more density than a ping pong ball. Does this make sense?
Density is mass/unitvolume. for instance the density of water is approximately 1000 grams per Liter. So in one liter of space there is 1000 grams of water.
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