Water Maker

Topics Elementary School, Physics

Grade Levels:
K-3

Question:
Can you melt ice or snow to make water when the temperature is below freezing?

Possible Hypotheses:
Ice or snow can/cannot melt when the temperature is below freezing.

Materials:
3 clear bowls - glass or plastic
12 ice cubes
Clear plastic
Black plastic

Procedure:

  1. Place four ice cubes in each bowl. Leave one bowl uncovered, cover one with clear plastic, and cover one with black plastic.
  2. Place the bowls outside on a cold day (below freezing).
  3. Check the ice cubes every 15 minutes for an hour and record your observations.
  4. Try this experiment on a cold sunny day and on a cold cloudy day.

Analysis and Conclusion:
Did any of the ice melt when the temperature was below freezing? Did the amount of sun make a difference? Can you explain your results?

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