Grade 6 Science Experiment 4 - "Road Salt - Is it the Fastest Way to Melt Icy Roads?"
The purpose of this science fair project is to explore the effect of road salt placed on snowy and icy roads. The freezing point for water is 32 degrees Fahrenheit. At this temperature water freezes into ice. Road salt is placed on snowy and icy roads because the salt causes the ice and snow to melt. The chemistry behind this reaction is that salt lowers the melting point or freezing point of water. The salt acts as foreign particles in the water to help the melting process.
In this science fair project you will simulate sidewalks and roads in icy conditions. You will fill dishes with ice to represent the sidewalks and roads. You will place various materials across the ice cubes to see if and how the ice cubes melt. The various materials include: road salt, fertilizer, calcium chloride, cat litter, and sand.
Road salt and the various other materials will cause the ice to melt faster than using nothing at all.
Type of material spread on ice
- Six dishes that have dimensions of 9 x 13 inches
- Freezer available to use during the science fair project
- 12 ounces of road salt
- 12 ounces of fertilizer
- 12 ounces of calcium chloride
- 12 ounces of cat litter
- 12 ounces of sand
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