Science Project:

Does Hot Water Boil Faster Than Cold?

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Materials:

  • 2 water kettles (preferably two different colors for color-coding purposes)
  • 2candythermometers
  • Hot and cold water from the faucet
  • Stove
  • Pen and paper for notes
  • An adult (to handle the boiling water)

Procedure

  1. Fill each water kettle up ¾ full of water. Make sure each kettle has the same amount of water inside. Take the temperature of the water in each kettle.
  2. Ask an adult to help you boil the water on the stove.
  3. Watch how long each takes to “whistle” and bubble up. Record the temperature after boiling and analyze your findings.
  4. Some people also say that hot water will freeze faster than cold water. Test if this is true or false by simply filling one container with hot water and another with cold. Pop into the freezer and monitor it at regular intervals. If you have a freezer with a clear door, that will be even easier as you won't have to open the freezer to check on it.
Author: Sofia PC
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