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by iwtban
March 3rd, 2009, 6:32 pm
Forum: 2009 Study Events
Topic: Fossils
Replies: 645
Views: 57279

Re: Fossils

Hey, gniess, is there any way that I could 3 hole punch you and stuff you in my binder? Cause you're probably the best info there is. Hehe thanks Croman, I'm flattered :D Actually, if you want, I could email some of my binder pages to you. They happen to be amazing. Hey, can you send me one of the ...
by iwtban
February 27th, 2009, 12:16 am
Forum: 2009 Lab Events
Topic: How do you test for soil contaminants?
Replies: 12
Views: 4061

Re: How do you test for soil contaminants?

For the NPK test, do I need to buy the kit or can I use chemical in the chemistry class room? Besides, how to you do NPK testing? Thank you so much
by iwtban
February 17th, 2009, 12:04 am
Forum: 2009 Lab Events
Topic: Forensics?
Replies: 85
Views: 28376

Re: Forensics?

I have never flame tested with a candle, is it much different? Obviously, the flame is less strong but is there anything else notable? Density tests should work.... make sure you stir the pellets to get rid of the surface tension. I don't think you can see the color, like LiCl with a reddish color ...
by iwtban
February 17th, 2009, 12:00 am
Forum: 2009 Lab Events
Topic: Forensics?
Replies: 85
Views: 28376

Re: Forensics?

I really need help for polymers, can anyone help please. I don't know how to identify them, the density test doesn't seem to work for me.
by iwtban
February 5th, 2009, 11:01 pm
Forum: 2009 Lab Events
Topic: Chem and Physics labs
Replies: 42
Views: 13187

Re: Chem and Physics labs

thanks so much, that really helps a lot.
by iwtban
February 4th, 2009, 11:18 pm
Forum: 2009 Lab Events
Topic: Chem and Physics labs
Replies: 42
Views: 13187

Re: Chem and Physics labs

We had to have taken 30 minutes on the titrations at invites, but we split up the test such that my partner did the titration and I did the test (test was rather long). Remember time comes last to accuracy and precision, and I expect some teams to get screwed up with bad results because they actual...
by iwtban
January 28th, 2009, 10:21 pm
Forum: 2009 Lab Events
Topic: Chem and Physics labs
Replies: 42
Views: 13187

Re: Chem and Physics labs

thanks for your detailed description of the event. So, at your invitational, for the titration, did they ask to calculate the concentration of the acid or anything else? Thanks.
by iwtban
January 28th, 2009, 2:07 pm
Forum: 2009 Lab Events
Topic: Chem and Physics labs
Replies: 42
Views: 13187

Re: Chem and Physics labs

thanks for all the replies.
for anyone who has competed at invitationals this year, i want to ask if the test was hard and how did the judges grade the titration race?
by iwtban
January 27th, 2009, 11:33 am
Forum: 2009 Lab Events
Topic: Chem and Physics labs
Replies: 42
Views: 13187

Re: Chem and Physics labs

they ask for standard deviation, so how many times you would suggest to do the titration? thanks.
by iwtban
January 25th, 2009, 6:54 pm
Forum: 2009 Study Events
Topic: Fossils
Replies: 645
Views: 57279

Re: Fossils

Hi, where can i find out the mode of life of any of the phylum? The field guide doesn't talk about mode of life. Thanks for the help.

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