Crime Busters B

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Crimesolver
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Re: Crime Busters B

Post by Crimesolver »

wec01 wrote:1. What is the most common fingerprint type (between loops, arches and whorls)?
2. List three fingerprint development techniques.
3. What is the difference between patent, latent, and plastic fingerprints?
i studied this a dAY AGO 
1. Loop
2. Iodine fuming, nihydran, dusting
3. Patent - fingerprint created by foreign substances - visible to the eye
Patent - fingerprinted created by oils
Plastic - fingerprint that is imprinted into something.
Keep on going :)
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Re: Crime Busters B

Post by wec01 »

Crimesolver wrote:
wec01 wrote:1. What is the most common fingerprint type (between loops, arches and whorls)?
2. List three fingerprint development techniques.
3. What is the difference between patent, latent, and plastic fingerprints?
i studied this a dAY AGO 
1. Loop
2. Iodine fuming, nihydran, dusting
3. Patent - fingerprint created by foreign substances - visible to the eye
Patent - fingerprinted created by oils
Plastic - fingerprint that is imprinted into something.
you accidentally typed patent twice, the second one was meant to be latent.
Your turn
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Crimesolver
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Re: Crime Busters B

Post by Crimesolver »

1. What process is used to create polyester and nylon?
2. Name on type of animal fiber
3. How can you tell the difference between animal and vegetable fiber with a microscope?
Keep on going :)
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Re: Crime Busters B

Post by wec01 »

Crimesolver wrote:1. What process is used to create polyester and nylon?
2. Name on type of animal fiber
3. How can you tell the difference between animal and vegetable fiber with a microscope?
1. Polymerization
2. Wool
3. Not sure if there's anything that applies to all animal vs vegetable fibers, but some things like scales on animal fibers would give it away
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2nd place Thermodynamics
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Crimesolver
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Re: Crime Busters B

Post by Crimesolver »

wec01 wrote:
Crimesolver wrote:1. What process is used to create polyester and nylon?
2. Name on type of animal fiber
3. How can you tell the difference between animal and vegetable fiber with a microscope?
1. Polymerization
2. Wool
3. Not sure if there's anything that applies to all animal vs vegetable fibers, but some things like scales on animal fibers would give it away
1. I was thinking of condensation
Your turn!
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Re: Crime Busters B

Post by wec01 »

List and describe the stages of hair growth
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Re: Crime Busters B

Post by Sapphire »

wec01 wrote:List and describe the stages of hair growth
Anagen- growing. 
Catagen- transition.
Telogen- Resting. Hair is released and falls out.
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Re: Crime Busters B

Post by wec01 »

Sapphire wrote:
wec01 wrote:List and describe the stages of hair growth
Anagen- growing. 
Catagen- transition.
Telogen- Resting. Hair is released and falls out.
Yep, your turn
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Re: Crime Busters B

Post by Sapphire »

What does sodium acetate do in water?
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Re: Crime Busters B

Post by wec01 »

Sapphire wrote:What does sodium acetate do in water?
-undergoes hydrolysis (reacts with water and breaks into acetate and sodium ions)
-creates a basic solution (some of the acetate ions will take protons from water molecules leaving hydroxide ions)
2019 Division C Nationals Medals:
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5th place Sounds of Music
2nd place Thermodynamics
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