Fun experiment from the Scientific American Blog.
The snow and ice have arrived. And for a lot of the country that means the season of shoveling, salting, and suiting up before going outside. But rather than seeing all that extra effort as wasted, why not see it as a reason to get to know ice, salt, and snow a little bit better? If the winter break has your budding scientist itching for things to fill their time, consider this experiment as a break from the movies and hot chocolate.
Why do we salt the driveway?A snowy lawn is a great excuse to build a fort, make a snowman, or wage a snow battle with the neighbors. Icy roads and driveways? Those are a lot less fun. Cities put a lot of work into trying to keep the roads clear enough that cars won’t keep going when they are supposed to stop, stay put when they are supposed to go, or run into things that they aren’t supposed to run into.
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