Part B: Experimental Design
To perform the experiment, Jared will follow these instructions:
1.Put one or two ice cubes in one cup of water. Chill the cup of water in the refrigerator for 1 to 2 hours. Remove any remaining ice when taking the water out of the refrigerator. This cup holds the ice-cold water.
2.Heat up three cups of water in the microwave for 15 to 20 seconds until they reach 100°F on the thermometer. If the water is too hot, wait until the temperature drops to 100°F. These cups hold the lukewarm water.
3.Heat the last cup of water in the microwave until it reaches 212°F. This cup holds the boiling water.
4.Line up five glasses an label them A, B, C, D, and E. Then put the following contents in each glass:
5.Use the spoon to stir the contents in glasses B, C, D, and E until the sugar dissolves. Then immediately add a packet of yeast to each glass. Wash the spoon and stir in the yeast. Cover the top of glass E tightly with plastic wrap.
6. Wait 15 minutes. Then measure the foam level in each glass in centimeters, as shown in the image.
7. Take measurements of the foam level every 15 minutes for 60 minutes and record the measurement
What is Jared testing in this experiment
A. how the products of anaerobic and aerobic respiration differ
B. how the temperature of water affects photosynthesis
C. the amount of respiration that occurs
D. the rate at which sugar dissolves