The water evaporated and the salt stayed in the cup.
The salt and the water made a special mixture, called a solution. The water chemically changed when we added salt to it, and it was harder to separate than trail mix.
9/29/10
Separating Mixtures and Solutions
Today, we mixed water and salt together. The salt dissolved in the water, and we couldn't see the little pieces anymore. We separated the salt from the water by putting it on a hot plate.
The salt and the water made a special mixture, called a solution. The water chemically changed when we added salt to it, and it was harder to separate than trail mix.
The salt and the water made a special mixture, called a solution. The water chemically changed when we added salt to it, and it was harder to separate than trail mix.
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