... cool the water to zero degrees. The range in which the measurements will be taking will be measured every 10 degrees. This is a good range and will allow 11 measurements to be taken (100°C - 0°C). The temperature will be measured in degrees Kelvin. The Kelvin scale begins at absolute zero and increases in degrees just like the Celsius scale. Absolute zero is the limit of how cold an object can become. 0°C becomes 273 Kelvin (273 K) and 100°C becomes 373 K. There are other variables in this experiment but as they are not being tested the must be kept the same to make it a fair test. The same squash ball is important because at different weights the amount of potential energy stored by the ball will change altering the height of the bounce. Keeping the same height of drop is important as at different heights will also change ...

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