Melting Ice

based on 37 ratings

Grade Levels:

Will salt make ice melt faster?

Possible Hypotheses:
Salt will/will not make ice melt faster.

Four ice cubes – the same size
Four small plastic cups


  1. Place one ice cube in each cup.
  2. Sprinkle one teaspoon of salt into one cup (S), two teaspoons on salt into another (SS), and three teaspoons of salt into a third (SSS). The fourth cup will be your control (C). Mark the cups as shown in the brackets.
  3. Place the cups in a sunny place and observe.

Analysis and Conclusion:
Which ice cube melted fastest? Did salt make the ice melt faster? On an icy day, how could you make your driveway safer?

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