Crime Busters B

Test your knowledge of various Science Olympiad events.
NinjaKat748
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Re: Crime Busters B

Postby NinjaKat748 » January 5th, 2018, 11:36 am

If you were given water and hydrogen peroxide, how would you find the difference between them? (They have the same ph, are odorless, and look pretty much exactly alike, just as a reminder)
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Fast Facts, Crime Busters, and Solar System
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Tailsfan101
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Re: Crime Busters B

Postby Tailsfan101 » January 6th, 2018, 7:48 am

NinjaKat748 wrote:If you were given water and hydrogen peroxide, how would you find the difference between them? (They have the same ph, are odorless, and look pretty much exactly alike, just as a reminder)

Put some iodine in them. The hydrogen peroxide will fizz right away, but the water will have no reaction.
2020 Treasure Valley Homeschool Wiki (Division C)

2019 results
Mini-Inv./DISCO/State/Nats
RS: 1/2/1/-
DD: -/3/2/-
HD: 2/4/4/-
CB: 3/6/1/-
ELG: -/6/-/-
GLM: -/-/-/31
WIDI: -/-/-/24
PTQ: -/-/-/41


Possible 2020 events: DD, GLM, Code, WIDI, 4N6, DG

Assassinator for games #118 and 136

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Re: Crime Busters B

Postby Tailsfan101 » January 26th, 2018, 8:02 am

Going to start this up again...

What is the only plastic that floats in 50% Isopropyl Alcohol?
2020 Treasure Valley Homeschool Wiki (Division C)

2019 results
Mini-Inv./DISCO/State/Nats
RS: 1/2/1/-
DD: -/3/2/-
HD: 2/4/4/-
CB: 3/6/1/-
ELG: -/6/-/-
GLM: -/-/-/31
WIDI: -/-/-/24
PTQ: -/-/-/41


Possible 2020 events: DD, GLM, Code, WIDI, 4N6, DG

Assassinator for games #118 and 136

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Re: Crime Busters B

Postby cookie75 » January 27th, 2018, 10:09 am

Tailsfan101 wrote:Going to start this up again...

What is the only plastic that floats in 50% Isopropyl Alcohol?


Polypropylene?

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Re: Crime Busters B

Postby Tailsfan101 » January 27th, 2018, 10:20 am

cookie75 wrote:
Tailsfan101 wrote:Going to start this up again...

What is the only plastic that floats in 50% Isopropyl Alcohol?


Polypropylene?

Correct! Your turn.
2020 Treasure Valley Homeschool Wiki (Division C)

2019 results
Mini-Inv./DISCO/State/Nats
RS: 1/2/1/-
DD: -/3/2/-
HD: 2/4/4/-
CB: 3/6/1/-
ELG: -/6/-/-
GLM: -/-/-/31
WIDI: -/-/-/24
PTQ: -/-/-/41


Possible 2020 events: DD, GLM, Code, WIDI, 4N6, DG

Assassinator for games #118 and 136

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Re: Crime Busters B

Postby cookie75 » January 27th, 2018, 10:50 am

Um... all right then...
What are the four nitrogenous bases in DNA?

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Re: Crime Busters B

Postby Tailsfan101 » January 29th, 2018, 7:29 am

cookie75 wrote:Um... all right then...
What are the four nitrogenous bases in DNA?

Adenine, Guanine, Cytosine, and Thymine.
2020 Treasure Valley Homeschool Wiki (Division C)

2019 results
Mini-Inv./DISCO/State/Nats
RS: 1/2/1/-
DD: -/3/2/-
HD: 2/4/4/-
CB: 3/6/1/-
ELG: -/6/-/-
GLM: -/-/-/31
WIDI: -/-/-/24
PTQ: -/-/-/41


Possible 2020 events: DD, GLM, Code, WIDI, 4N6, DG

Assassinator for games #118 and 136

cookie75
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Re: Crime Busters B

Postby cookie75 » January 29th, 2018, 8:20 pm

Tailsfan101 wrote:
cookie75 wrote:Um... all right then...
What are the four nitrogenous bases in DNA?

Adenine, Guanine, Cytosine, and Thymine.

That's correct

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Re: Crime Busters B

Postby Tailsfan101 » January 30th, 2018, 7:04 am

New Question: What is the only way to tell apart salt and sugar?
2020 Treasure Valley Homeschool Wiki (Division C)

2019 results
Mini-Inv./DISCO/State/Nats
RS: 1/2/1/-
DD: -/3/2/-
HD: 2/4/4/-
CB: 3/6/1/-
ELG: -/6/-/-
GLM: -/-/-/31
WIDI: -/-/-/24
PTQ: -/-/-/41


Possible 2020 events: DD, GLM, Code, WIDI, 4N6, DG

Assassinator for games #118 and 136

Benewcomb
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Re: Crime Busters B

Postby Benewcomb » January 31st, 2018, 8:44 am

The shape of the granules, and the taste. Salt is mainly cubic, and sugar looks a bit like a fallen column. Of course sugar is sweet, and salt is, well, salty.
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Re: Crime Busters B

Postby Tailsfan101 » January 31st, 2018, 2:05 pm

Benewcomb wrote:The shape of the granules, and the taste. Salt is mainly cubic, and sugar looks a bit like a fallen column. Of course sugar is sweet, and salt is, well, salty.

Correct! Your turn. (I don't think we're allowed to taste it)
2020 Treasure Valley Homeschool Wiki (Division C)

2019 results
Mini-Inv./DISCO/State/Nats
RS: 1/2/1/-
DD: -/3/2/-
HD: 2/4/4/-
CB: 3/6/1/-
ELG: -/6/-/-
GLM: -/-/-/31
WIDI: -/-/-/24
PTQ: -/-/-/41


Possible 2020 events: DD, GLM, Code, WIDI, 4N6, DG

Assassinator for games #118 and 136

Benewcomb
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Location: Hauser Jr Sr High School

Re: Crime Busters B

Postby Benewcomb » February 1st, 2018, 5:39 am

What’s are the differences between wool and silk (when burned)? (Hey girls you doing the curiosity confidence challenge?)
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Re: Crime Busters B

Postby Polarrr » February 14th, 2018, 4:54 pm

I think wool has a stronger odor than that of silk, although they are similar. Also, silk stops burning once you take it out of the flame but wool may continue for a bit.

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Re: Crime Busters B

Postby Benewcomb » February 19th, 2018, 7:52 am

Yes! Your turn.
It’s gonna be me!

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Re: Crime Busters B

Postby Polarrr » February 20th, 2018, 8:06 pm

How do you identify the difference between polyester, nylon, and acrylic in a burn test? How do they differ underneath a microscope?


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