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Salt water!? - Why are tears salty? (Experiment) |
by Mya Kagan (whyzz writer) >> more about the author
Salt and water have a really cool relationship to each other! Try out this experiment to see for yourself!
Get a cup of water, and add about half a teaspoon of salt to it. Stir is up really well, and watch the way the salt “disappears.”
Then, leave the cup of water on a sunny windowsill for at least a day (maybe two) until all of the water is evaporated by the sun.
What do you find in the bottom of the cup when all of the water is gone?? What do you think has happened?!