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Re: Food Science B

Posted: April 9th, 2013, 10:19 am
by Beastybob12345
geminicross wrote:
Beastybob12345 wrote:Hmm... we didn't have to bake cupcakes at our invitational... that would be cool though. :D And what is an Easy Bake Oven?
my god...

You haven't seen the commercials?
Apparently not, are they in a specific state? :?:

Re: Food Science B

Posted: April 9th, 2013, 12:39 pm
by leeumpetro
My Viscotesters are not working! I decided to use the styrofoam cup method and that appears to give me bad numbers for my graph (It doesn't curve). I was just looking for some suggestions for Viscotesters and some good materials to test. Thanks!

Re: Food Science B

Posted: April 9th, 2013, 1:51 pm
by Beastybob12345
Well, I didn't use the styrofoam cup, I used a plastic tube, similar to a test tube kind of thing. It flows well and my standard curve actually curved. And regarding the items to test, they have a list that is updated. Hope that helped. :D

Re: Food Science B

Posted: April 10th, 2013, 6:22 pm
by PicturePerfect
Beastybob, have you had your State competition yet?

Re: Food Science B

Posted: April 11th, 2013, 5:20 am
by leeumpetro
Beastybob12345 wrote:Well, I didn't use the styrofoam cup, I used a plastic tube, similar to a test tube kind of thing. It flows well and my standard curve actually curved. And regarding the items to test, they have a list that is updated. Hope that helped. :D
Thanks! that does help! :lol:

Re: Food Science B

Posted: April 20th, 2013, 10:59 am
by Ajullie1105
So at States last year in Michigan, they wanted us to take the density of flour. Does anyone know how to do that? They gave us some flours, and a scale. We were pretty stumped.

Re: Food Science B

Posted: April 21st, 2013, 5:58 am
by hscmom
Ajullie1105 wrote:So at States last year in Michigan, they wanted us to take the density of flour. Does anyone know how to do that? They gave us some flours, and a scale. We were pretty stumped.
Density of anything is mass over volume. For example water is 1 gram per milliliter (1 g/ml) which is a standard of density. Things less dense will float in water and denser things sink in water... Anyway, flour doesn't "weight much" (that's non-technical for "low density"). Measure out some flour, say 100 ml, using a beaker or graduated cylinder or metric measuring cup. Then weigh the flour on a scale. I have no idea what 100 ml of flour would weigh but let's say that 100 ml of flour is 50 grams. That's its mass. Put it in a ratio: 50 g/100ml and then divide both denominator and numerator by 100 to get rid of the 100 in the denominator. Now you have the equivalent fraction of .5g/ml and that's your density. If the flour weighed 30 grams then its density is .3g/ml.

Good SO skill to have anyway.

Re: Food Science B

Posted: April 21st, 2013, 8:29 am
by Ajullie1105
hscmom wrote:
Ajullie1105 wrote:So at States last year in Michigan, they wanted us to take the density of flour. Does anyone know how to do that? They gave us some flours, and a scale. We were pretty stumped.
Density of anything is mass over volume. For example water is 1 gram per milliliter (1 g/ml) which is a standard of density. Things less dense will float in water and denser things sink in water... Anyway, flour doesn't "weight much" (that's non-technical for "low density"). Measure out some flour, say 100 ml, using a beaker or graduated cylinder or metric measuring cup. Then weigh the flour on a scale. I have no idea what 100 ml of flour would weigh but let's say that 100 ml of flour is 50 grams. That's its mass. Put it in a ratio: 50 g/100ml and then divide both denominator and numerator by 100 to get rid of the 100 in the denominator. Now you have the equivalent fraction of .5g/ml and that's your density. If the flour weighed 30 grams then its density is .3g/ml.

Good SO skill to have anyway.
Thank you!! :D

Re: Food Science B

Posted: April 22nd, 2013, 1:55 pm
by Beastybob12345
PicturePerfect wrote:Beastybob, have you had your State competition yet?
Yes, we have! It was on April 13th I think. Rolling Hills got 9th overall. That's an improvement from last year!!! :lol:

Re: Food Science B

Posted: April 23rd, 2013, 8:22 am
by Gearbox
Anyone know the exact chemical reactions involved in baking including chemical equations? Thanks!

I can help people out with fats/fatty acids if they need help