Science Crime Busters B

EpicFailure
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Re: Science Crime Busters B

Post by EpicFailure »

Did you find the analysis for last year's test hard to follow?
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Re: Science Crime Busters B

Post by poparteeb2 »

Would the test supervisor ever give rayon as a fiber to identify? It's not truly a synthetic or vegetable fiber, it's an artificial fiber, so how would you identify it?
Regionals: 1st place Crime, 1st place Anatomy, 3rd place Experimental Design.
States: 1st Place Anatomy, 2nd Place Experimental Design, 6th Place Crime, 26th Place Powders *wince*
Nationals: 4th place Anatomy, 4th place Crime, 30th Powders *wince again*
Overall team ranking: 7th
dholdgreve
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Re: Science Crime Busters B

Post by dholdgreve »

poparteeb2 wrote:Would the test supervisor ever give rayon as a fiber to identify? It's not truly a synthetic or vegetable fiber, it's an artificial fiber, so how would you identify it?
If they did, I think you are safe calling it a synthetic:
ray·on
 –noun
1. A regenerated, semisynthetic textile filament made from cellulose, cotton linters, or wood chips by treating these with caustic soda and carbon disulfide and passing the resultant solution, viscose, through spinnerets.

2. fabric made of this filament.
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Re: Science Crime Busters B

Post by purplepeopleeater »

Has anyone had any soil ID/matching at all this year???
and we had blood typing at state... >.<
No matter what the experiment's result, there will always be someone eager to:(a) misinterpret it(b) fake it, or (c) believe it supports his own pet theory.
2010 Nationals---
  • 3rd Model This, 17th Bio Process Lab, 27th Science Crime Busters
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Re: Science Crime Busters B

Post by prelude to death »

purplepeopleeater wrote:Has anyone had any soil ID/matching at all this year???
and we had blood typing at state... >.<
Well, I haven't had any soil stuff this year, but there's some on a lot of practice tests, and to me, it's pretty easy, since you only need to look at the tracks that made the mark and look for patterns in both the tracks and the soil.
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Re: Science Crime Busters B

Post by EpicFailure »

On the Nationals test it asked for the name of a fiber that's named for it's appearance. The end of the fiber kind of looked like cheese wedges. Does anyone know what fiber it is?
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Re: Science Crime Busters B

Post by Cheese_Muffin_Man »

EpicFailure wrote:On the Nationals test it asked for the name of a fiber that's named for it's appearance. The end of the fiber kind of looked like cheese wedges. Does anyone know what fiber it is?
MICROFIBER
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Re: Science Crime Busters B

Post by Cheese_Muffin_Man »

By the way, I was the one who won!!!!! YEAH!!!
poparteeb2
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Re: Science Crime Busters B

Post by poparteeb2 »

oh my god I got that question about microfibers right! :) nice job cheese muffin man, fellow new yorker.
Regionals: 1st place Crime, 1st place Anatomy, 3rd place Experimental Design.
States: 1st Place Anatomy, 2nd Place Experimental Design, 6th Place Crime, 26th Place Powders *wince*
Nationals: 4th place Anatomy, 4th place Crime, 30th Powders *wince again*
Overall team ranking: 7th
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Re: Science Crime Busters B

Post by Cheese_Muffin_Man »

poparteeb2 wrote:oh my god I got that question about microfibers right! :) nice job cheese muffin man, fellow new yorker.
stephanie? other guy? i was the indian who hugged u lol
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