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Post by Michael Carson on Oct 31, 2008 12:36:06 GMT -6
if you break it exactly in half you will lose equal amounts of both mass and vloume so it should stay the same because if i divide 100 by 50 i get two but if i take away half of each one and divide 50 by 25 i still get two so i should have the same density if we take exactly half of it. so it would still float and u could even test it by by getting two pieces of stryofoam and having one exactly half of the other and then massing it the finding the volume then divide it g/cm3 and u would get the density then repeat for the smaller and u should get the same density for each of them.
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Post by zackerystingley on Oct 31, 2008 12:39:39 GMT -6
If you keep putting it in halves it would still always float but i dont think it would have the same density every time
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Post by Jazmin Castillo on Oct 31, 2008 12:40:37 GMT -6
i think the reason it floats was because the styro foam is expanded and it has air in other words less compact
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Post by Michael Carson on Oct 31, 2008 12:43:48 GMT -6
If you keep putting it in halves it would still always float but i dont think it would have the same density every time It would because the numbers for each item (the mass and volume) are exactly half of what they were before and if i dived those two i would come up with the same number like if i divide 20 by 10 i get 2 and if i divide 10 by 5 i get 2 still so they would have to be the same.
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Post by Alex Cleveland on Oct 31, 2008 13:23:39 GMT -6
i think the reason it floats was because the styro foam is expanded and it has air in other words less compact ;D Yeah i think it depends on what container the water is in though...
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Post by Carlos Gonzalez on Oct 31, 2008 14:06:24 GMT -6
Yeah if you take some off its mass or density would drop But wouldn't it help it to float
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patricia schopp
Full Member
I have this pointy thing and i'm not afraid to use it
Posts: 106
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Post by patricia schopp on Nov 5, 2008 17:14:19 GMT -6
Yeah if you take some off its mass or density would drop But wouldn't it help it to float styrfoam always floats becuase it is less dense than water
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Post by Emily Klemme on Nov 11, 2008 11:21:28 GMT -6
The styrofoam floats because its less dense than the water and is lighter. If it was heavier it would sink. I think for number two it could still float because it'd still be ligher than the water. You could always experiment it by ripping a piece of styrofoam in half and see what happens.
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Post by katie on Nov 11, 2008 14:28:53 GMT -6
the density of styrafoam is less than water because it flots. the density is less than 1. if the density was greater than water it would sink.
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Post by Carlos Gonzalez on Nov 11, 2008 14:45:18 GMT -6
If you keep putting it in halves it would still always float but i dont think it would have the same density every time I agree with Zack even if you still put the styrofoam together it won't be the same mass. It will lose a bit but not a lot of mass
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jocelyn wolff
Full Member
DARTS ARE VERY VERY DANGEROUS!!!!
Posts: 123
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Post by jocelyn wolff on Nov 13, 2008 14:58:12 GMT -6
2) The density of the styrofoam would stay the same.
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jocelyn wolff
Full Member
DARTS ARE VERY VERY DANGEROUS!!!!
Posts: 123
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Post by jocelyn wolff on Nov 13, 2008 15:00:32 GMT -6
But wouldn't it help it to float styrfoam always floats becuase it is less dense than water Could it be possible for the styrofoam to sink after a long periond of time? Because the water could possibly sink into it..
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Post by Carlos Gonzalez on Nov 17, 2008 15:12:24 GMT -6
But wouldn't it help it to float styrfoam always floats becuase it is less dense than water So styrofaom will always float on matter what type of liquid I take it
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