Tuesday, September 21, 2010

The Anacharis and the Light

To understand better the ingredients and environment necessary for photosynthesis, we started an experimental setup using an aquatic plant called Anacharis.  We added water and carbon dioxide bubble to a snippet of the aquatic plant.  Then we put one set of flasks in the light and other in a drawer.

We will see what happens tomorrow as our plants sit in their flasks.

Bromothymol blue is an indicator that lets us know the approximate pH (how acidic) of a solution.  When we bubble carbon dioxide through the water, the pH is lowered because we are creating carbonic acid.

http://dept.sfcollege.edu/natsci/chem/images/HBtB.jpg 

As you can see, we lowered the pH of our flasks from around 8-10 down to around a 6.

Let's see what happens tomorrow!!


Bode

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