Crime Busters B

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Re: Crime Busters B

Post by jgrischow1 » March 12th, 2019, 4:56 pm

Is a handheld microscope allowed as a "hand lens"?

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Re: Crime Busters B

Post by CPScienceDude » March 12th, 2019, 5:01 pm

jgrischow1 wrote:Is a handheld microscope allowed as a "hand lens"?
Uh, no? Truthfully though, I’m not sure. I’d just bring a magnifying lens just in case though.
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Re: Crime Busters B

Post by wec01 » March 12th, 2019, 5:11 pm

CPScienceDude wrote:
jgrischow1 wrote:Is a handheld microscope allowed as a "hand lens"?
Uh, no? Truthfully though, I’m not sure. I’d just bring a magnifying lens just in case though.
You will be provided a microscope, the only possible advantage in bringing one is not having to share if they don't have one per station. Even then, there are rarely issues with not having access to the microscope.
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Re: Crime Busters B

Post by qk11 » March 17th, 2019, 10:25 pm

Can anyone direct me to a flow chart or give me a series of steps for identifying what's in a mixture?

Also, what methods of mixture separation are likely to show up at state?

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Re: Crime Busters B

Post by Crimesolver » March 17th, 2019, 10:32 pm

qk11 wrote:Can anyone direct me to a flow chart or give me a series of steps for identifying what's in a mixture?

Also, what methods of mixture separation are likely to show up at state?
https://scioly.org/wiki/images/c/cd/Cri ... sheets.pdf It's in the last page

I think you're confusing that with potions and poisons, but for the sake of it, you will see chromatography, filtration, magnetism, decantation, and other simple separation. They probably won't give you anything that requires heat like evaporation and distillation, but be prepared for anything.
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Re: Crime Busters B

Post by sam13 » March 20th, 2019, 3:03 pm

Does chromatography solution affect a test differently than water would? I usually use water but states had a separate glass of "chromatography solution" to use. Does anyone know how to make such a solution?

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Re: Crime Busters B

Post by Crimesolver » March 20th, 2019, 4:18 pm

sam13 wrote:Does chromatography solution affect a test differently than water would? I usually use water but states had a separate glass of "chromatography solution" to use. Does anyone know how to make such a solution?
I'm pretty sure they labeled it "chromatography solution" to indicate that it was just for chromatography. There isn't a "recipe" for chromatography solution - it all depends on the type of pen. If it's a sharpie, you would want to use alcohol. If it's a marker, water would work just fine.
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Re: Crime Busters B

Post by sam13 » March 20th, 2019, 4:24 pm

Does anyone know if there is a plastics flow chart? I can't find one anywhere that has all possible science olympiad plastics. If anyone knows a simple way to identify mixtures, I would appreciate guidelines for this task.

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Re: Crime Busters B

Post by Crimesolver » March 20th, 2019, 4:27 pm

sam13 wrote:Does anyone know if there is a plastics flow chart? I can't find one anywhere that has all possible science olympiad plastics. If anyone knows a simple way to identify mixtures, I would appreciate guidelines for this task.
https://www.google.com/search?biw=1313& ... _WEO4VC9iM:
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Re: Crime Busters B

Post by drcubbin » March 20th, 2019, 4:50 pm

wec01 wrote:
CPScienceDude wrote:
jgrischow1 wrote:Is a handheld microscope allowed as a "hand lens"?
Uh, no? Truthfully though, I’m not sure. I’d just bring a magnifying lens just in case though.
You will be provided a microscope, the only possible advantage in bringing one is not having to share if they don't have one per station. Even then, there are rarely issues with not having access to the microscope.
Off the soinc.org website https://www.soinc.org/sites/default/fil ... 121718.pdf
So yes, a hand held lens is permissible, but a hand help microscope? Why do you think you need it?

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