Re: Does carbonation have an effect on the development of plants?

Jean,

You must have some reason for picking this topic for your Science Fair 
Project.  I would think this might have something to do with the fact that 
the bubbles in carbonated water are bubbles of carbon dioxide and carbon 
dioxide is necessary for photosynthesis to occur.  You might expect that by 
increasing carbon dioxide levels, you might increase photosynthesis.  The 
question is, how are you proposing to subject the plant to the carbonation; 
carbonated water? soda?  If you are planning on using a carbonated 
beverage, you may be adding more than one variable, i.e. sugar, coloring, 
flavorings.  You must also remember that carbonated beverages go "flat" 
very quickly as the carbon dioxide is lost to the environment.  However, if 
the plant "captures" or fixes this carbon dioxide, photosynthesis may 
increase.