Will salt make ice melt faster?
Salt will/will not make ice melt faster.
Four ice cubes – the same size
Four small plastic cups
- Place one ice cube in each cup.
- 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.
- 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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Reprinted with the permission of the NEED Project. © 2008 National Energy Education Development Project - All Rights Reserved.
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