Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...

Key concepts Chemistry Solubility Water Temperature Introduction Have you ever mixed sand and salt together and wondered how you could separate them again? If you had to separate them, would you have ...

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 ...

Introduction Have you ever added a spoon of sugar to your tea and wondered why it disappeared? Where did it go? The sugar did not actually disappear—it changed from its solid form into a dissolved ...

NEW BRIGHTON, Minn. (WCCO)-- From your standard salt, to pet-friendly mixes and advanced blends, melting ice has really become a science. Dr. Andy Erickson is a research manager at the University of ...