Science Crime Busters B

[twiggy_7]

at my regionals we didn't do any testing we just had a test packet and answered questions, will it be like this at state or will we actually be testing to find the powders and doing water testing?

[dudefromPRA]

I'll bet at state it will be testing powders and liquids and stuff like that. At our regionals we had to test powders, but ur not in my region. I got 3rd but I would count on having to test powders at state =D

[kayyy]

hey does anyone know how to test for water hardness, DO, or BOD? i looked on the internet but its not much of a help. thanks.

[4science]

Go to soinc.org, 2010 events--Science Crimebusters and look at the resources there. Lots of water testing help.

[4science]

Here's the link http://soinc.org/science_crime_busters_b

Look at the updated chart for 2010 and browse around.

[yyy4401]

people what do we do
given a mystery with evidence solve it
also analyze fingerprints, cenicals, tire trackes, and shoe prints

pez tell me on post or PM
thanks

[smarticle13]

basically, you are given a situation (crime scene) and five suspects who might be the perpetrator. In the lab, you go from one station to the other, and with the evidence found at the crime scene, you try to link the evidence to the perpetrator. One station might have a fingerprint analysis and another station might have a fabric analysis. Your job is to identify the perpetrator with evidence and then write a summary on it.

[cheezwarrior12]

Go to soinc.org, 2010 events--Science Crimebusters and look at the resources there. Lots of water testing help.

All I found was that BOD means Biological Oxygen Demand, aka the oxygen needed by animals in the water, and DO is dissolved oxygen, aka the amount of oxygen in the water.

[4science]

Go to this chart, it is directly from the soinc.org website (link I gave you above)--the updated info for 2010--
http://mypage.iu.edu/~lwoz/socrime/index.htm

look under student info column next to water testing. The left red button is a water ppt. the right red button is more water info. Look at every part of that row on water.

Like I said--you need to browse around. It's there.

[smarticle13]

what do we need to know about the different blood types?