Science Buddies: "Ask an Expert"

I am working on a science fair project about yeast fermentation in different liquids. I have done plenty of research and am working on my Experiment Plan. I was just wondering if you knew of any good sites to use. Also, what kind of yeast should i use for my experiment? Lastly, i am measuring the most active fermentation by the CO2 produced which i will measure with water displacement. Is there a formula to convert the water displacement to an actual air measurement?

-Please Respond-[/code]

I found a good website it is: http://www.newton.dep.anl.gov/askasci/m ... e00195.htm try it out

I found a pretty good website for you to see. Check it out: http://www.accessexcellence.org/LC/SS/f ... ivity.html

I found some more websites: http://spot.colorado.edu/~kompala/lab2.html
http://www.chemheritage.org/educational ... /yeast.htm

http://www.sargentwelch.com/product.asp ... ng&cr=1220

Is a OK kit (and cheep)(!!!!)

tylers740 wrote:
delete website
Is a OK kit (and cheep)(!!!!)

Tylers740,
It is most useful if you can provide information for free. A website that charges $64 for a kit is not cheap. If you look at the other links provided, you see that there are many sets of instructions that are free.


Louise

Hello,

First of all, what do you mean by air measurement? I think it would be fine if you measured the amount of CO2 through the water displacement method.

To do this, you can place the yeast in a large container with the liquid you are testing the fermentation in; have a graduated cylinder or flask and fill it with water, and stopper it. Invert it into the water and take out the stopper; make sure you keep the cylinder/flask directly over the yeast that is fermenting, so as to collect the CO2 being produced. This method is based off of a lab I did in Chemistry that dealt with the collection of butane gas. More information can be found here: http://serendip.brynmawr.edu/sci_edu/farber/pdf/bic.pdf

Hope this helps!

i found a few good websites... check these ones out:
http://spot.colorado.edu/~kompala/lab2.html
http://www.umd.umich.edu/sep/students/m ... n_exp.html
( yes i know they are from michigan but who gives! go bucks)
http://beer.about.com/od/fermenting/ss/ ... arter1.htm