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By Ruth Goodlaxson and Samar Aryani

We were responsible for part IV of the lab, concerning temperature. We tested the time it took for a filter disc, saturated in Catalase B, to rise to the top of 50 ml of hydrogen peroxide. We tested this in chilled water, water at room temperature, and hot water. Our prediction before starting the experiment was that the filter disc would rise slowly in the chilled water, faster in the room temperature, and the fastest in the hot water.

Our times for each temperature were as follows:

Chilled Water:

Trial 1: 15 seconds Trial 2: 12 seconds Trial 3: 13 seconds [average of 13 seconds]

Water in Room Temperature:

Trial 1: 11 seconds Trial 2: 11 seconds Trial 3: 11 seconds

Water in Hot Water:

Trial 1: Did not rise Trial 2: Did not rise Trial 3: Did not rise

As can be seen by our data, our prediction was wrong; the disc did not rise in the hot water.