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Problem: What are the measurements of the rates of enzymatic reactions? Materials:
 * Title: pH Effects on Rate of Catalase Enzymes**
 * Hydrogen peroxide
 * Packet of yeast
 * Hole puncher
 * Stopwatch
 * Filter paper
 * 6 beakers for each group (apx. 100 ml to 250 ml)
 * Sulfuric Acid

Procedure:
 * 1) Mix the yeast in a beaker containing warm water. Allow about 30 minutes for the yeast to activate. This can be labeled "catalase" or "enzyme"
 * 2) Hole punch the filter paper, try to avoid excessive contact with the paper and make sure your hands are clean.
 * 3) Make the hydrogen peroxide at pH levels of 2, 4, 6, 8, 10 and 12 by adding acids and bases as needed.
 * 4) Fill 6 beakers each about two-thirds full with the hydrogen peroxide solution from step 3 and label these "pH 2, pH 4, pH 6, pH 8, pH 10, pH 12.
 * 5) Use forceps to dip a filter paper square into the catalase solution.
 * 6) Drop the square into the first beaker. It will sink to the bottom.
 * 7) Start the stopwatch immediately. Record the time from the filter paper when it hit the bottom and until it floated to the top. That is the time you record.
 * 8) Repeat twice more for the first beaker.
 * 9) Then you repeat steps 5 through 8 for the remaining beakers.
 * 10) After all done have students make a graph of the results with pH as the horizontal axis and rate as the vertical axis.

Results:
 * pH || Group Results || Class Average ||
 * 2 || 180 || 170.7 ||
 * 4 || 12 || 32.8 ||
 * 6 || 10 || 10.1 ||
 * 8 || 10 || 11.9 ||
 * 10 || 10 || 9.72 ||
 * 12 || 22 || 16.5 ||