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Re: Can't Judge a Powder B

Posted: June 25th, 2011, 11:43 am
by Cheesy Pie
Our powder reacted with hcl. I love inorganic chem. And how the heck am I to memorize EVERY sugar?! Just how? Cjap>>>>food science.

Re: Can't Judge a Powder B

Posted: June 25th, 2011, 12:05 pm
by hpfananu
Well, let's just say once you memorize them using a creative way, they stick with you. I still remember them and last time I did the event was like April :P
Memorizing the sugars is easy..the structure of each one...
Good luck :)

Re: Can't Judge a Powder B

Posted: June 25th, 2011, 1:17 pm
by gneissisnice
Cheesy Pie wrote:Our powder reacted with hcl. I love inorganic chem. And how the heck am I to memorize EVERY sugar?! Just how? Cjap>>>>food science.
There's not that many sugars that you really have to know.

You basically have to know glucose, galactose, fructose, sucrose, maltose, dextrose (maybe) and lactose. The structures are all extremely similar; they have the same formula, the only difference between glucose and galactose is that an H and O are switched, and fructose is a pentose sugar as opposed to a hexose. They're really quite easy to memorize. The amino acids, on the other hand, are much more difficult, but you don't really have to memorize too many structures.

Re: Can't Judge a Powder B

Posted: July 2nd, 2011, 8:01 pm
by purplepeopleeater
Meh, sugars aren't that bad.
There is worse ;) ... hahahahaha MUCH MUCH worse. :D
*chuckles at all the time spent on this TRIAL event*

Re: Can't Judge a Powder B

Posted: July 10th, 2011, 10:27 am
by geekychic13
EpicFailure wrote:I don't think they would give you two pens. I sent a FAQ a few days ago asking if that's possible and I haven't heard back from the National organizers yet. poparteeb2, can you provide a link as to where you saw that an inference is necessary for the observation to be scored 5 pts? Also, what numeral level of resistance is equivalent to high, low, and medium conductivity?
They gave me two different pens at regionals and state, bcause if you just had one, you could change/ add observations without their knowledge and get more points, so that my friend is called cheating. :D

Re: Can't Judge a Powder B

Posted: August 4th, 2011, 11:15 am
by NYLHVSSO
They gave me a pen for observations and a pencil for questions. Some competitions give 2 different colored pens. This must be done according to the rules so people can't change their observations.

Re: Can't Judge a Powder B

Posted: August 4th, 2011, 8:40 pm
by anatomy
NYLHVSSO wrote:They gave me a pen for observations and a pencil for questions. Some competitions give 2 different colored pens. This must be done according to the rules so people can't change their observations.
ya, its for that only.
Because if you suddenly realize that you missed something while looking at a test question, then you can't just go back and add it to you observation sheet.
Still, if you answer the question correct without providing the observation, you get partial credit.