Do the data for the first part of the experiment support or refute the first hypothesis? Be sure to explain your answer and include how the variables changed in the first part of the experiment.

Sample response: The data for the first part of the experiment support the first hypothesis. As the height of the cylinder increased, the temperature of the water increased. At a greater height, the cylinder has more gravitational potential energy. This gravitational potential energy was completely converted to thermal energy, which increased the temperature of the water.