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Why do some objects sink while others float?

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If the density of an object is less than water, it will float. If the density is more than water, it will sink.

~Ninja Jackie-san

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SalvadoranDude

. A balloon full of air will float will a bowling ball will sink due to mass.

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partial credit
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Because different objects have different density. If the density is larger than the liquid content then it sinks and if the density is smaller than the liquid content then it floats?

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Mass + displacement

EG: A tank has more mass than a balloon ... but in WWII, they created floating tanks by altering the displacement.

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Very cool
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If something is more dense than water, it will sink. If it is less dense, it will float.

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if i remember right the density of water is 1 so to find the density of a solid is weight/volume if the density is grater than 1 it will sink if its less than 1 it will float.

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The more mass, it will sink...the less mass, the more floatation!! :)

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