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Post by Mr. Kruse on Oct 30, 2008 19:58:19 GMT -6
Yesterday in class we discussed the density of a piece of styrofoam. We made clear that the styrofoam's density is less than that of water. In this thread, discuss:
1) how you know the density of styrofoam is less than water and what that means?
2) What happens to the density if I rip the styrofoam in half? Explain your reasoning.
3) How we could investigate number 2.
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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 Oct 31, 2008 10:10:48 GMT -6
the styrofome has to have a density less than 1 since it floats
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Post by michaelfelipe on Oct 31, 2008 10:13:29 GMT -6
it could float because it may have less mass
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Post by michaelfelipe on Oct 31, 2008 10:15:19 GMT -6
3.we could probrably do that in class and see if it could float
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Post by DerekHerron on Oct 31, 2008 10:24:40 GMT -6
Styrafoam is preety easy to guess if it will float or not. By meaning that styrafoam has very little mass and density in it. But in not sure what the other people are saying though
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Post by DerekHerron on Oct 31, 2008 10:27:32 GMT -6
You could investigate answer 2 with experiment. Just grab styrafoam and ware. And then rip it in half. I think that both peices will stilkl float.
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Post by Meranda Oban on Oct 31, 2008 10:29:56 GMT -6
i think that the density would go down because you would take some of the object off
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Post by brandonlong on Oct 31, 2008 10:59:35 GMT -6
i agree with miranda
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Post by Tia Trizila on Oct 31, 2008 11:01:22 GMT -6
#3 we could mass the styrofoam then rip it in half then mass i again
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Post by Victor Mar on Oct 31, 2008 11:03:17 GMT -6
what happens if you let styrofoam set in water wouldn't it get all wet and sink
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Post by Mr. Kruse on Oct 31, 2008 11:08:55 GMT -6
#3 we could mass the styrofoam then rip it in half then mass i again That would give mass difference, but what about density?
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Post by Ruben De Leon on Oct 31, 2008 11:55:22 GMT -6
it could float because it may have less mass But if you break it in half would you still have the same mass
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Post by Carlos Gonzalez on Oct 31, 2008 12:29:47 GMT -6
I agree withh both Meranda and Brandon by taking some of the styrofoam off it would make it less heavy
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Post by Emily Kassing on Oct 31, 2008 12:32:45 GMT -6
For number two, if you ripped the styrofoam in half it would make it weigh less so that means less density right?
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Post by zackerystingley on Oct 31, 2008 12:35:57 GMT -6
Yeah if you take some off its mass or density would drop
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