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 ...

One such question, asked every now and then, is why humans float more easily in saltwater. There are a few places in the world where this is especially apparent, for example in the Dead Sea, or in the ...

Compare the density of water to that of different liquids. Krystal Balmes and Sahil from the Brooklyn Preschool of Science make predictions about the density of water to that of honey, corn syrup, and ...

Liquid water’s crystal structure (left) compared to that of ordinary water ice (right). Graphic: University of Cambridge If you thought ice varieties got no more interesting than crushed versus cubed, ...