Salt Crystals!

We continued our matter investigation after we found out that when salt was mixed with water, it became a solution. A solution is a kind of mixture, in which different kinds of matter are mixed completely with each other. We wanted to see if there was any way to separate the salt from the water again, without using heat. So, we added out salt water solution to a cup and placed a small piece of black construction paper inside of it and “voilà”…the water evaporates and the salt crystals form on the black paper! 🙂