please help me! Question 2 To prepare for the experiment, follow these steps:

Put one or two ice cubes in 1 cup of water. Chill the cup of water in the refrigerator for 1 to 2 hours. Remove any remaining ice when you take the water out of the refrigerator. This cup holds the ice-cold water.
Heat up three cups of water in the microwave for 15 to 20 seconds until they reach 100°F on the thermometer. If you heat the water too much, wait until the temperature drops to 100°F. These cups hold the lukewarm water.
Heat the last cup of water in the microwave until it reaches 212°F. This cup holds the boiling water.
Now line up the five glasses and label them A, B, C, D, and E. Then put the following contents in each glass:

Glass Contents
A 1 cup lukewarm water
B 1 cup lukewarm water and 1 tablespoon sugar
C 1 cup boiling water and 1 tablespoon sugar
D 1 cup ice-cold water and 1 tablespoon sugar
E 1 cup lukewarm water and 1 tablespoon sugar (this one will be covered with plastic wrap)
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.

Wait 15 minutes. Then measure the foam level in each glass in centimeters, as shown in the image.