Humans have been harvesting salt since prehistoric times. In this kitchen-science experiment from ATK Kids — the children's website of America's Test Kitchen — chunky flakes of salt appear as a ...

Do you want to float on water? Take a trip to the Dead Sea or the Great Salt Lake. Because both bodies of water contain huge amounts of salt, swimmers can easily float! Compare the densities of ...

A longstanding mystery about how salt dissolves in water has finally been solved, thanks to machine learning. Understanding the complete process of how sodium chloride, or salt, dissolves in water is ...

Some objects float in water and other sink. But did you know that you can change whether something floats or sinks by adding a substance to the water? Let's try it and see! Pour water into a cup until ...