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 ...

Why does ice float in water, instead of sinking to the bottom? It has to do with water's density and molecular structure. When you purchase through links on our site, we may earn an affiliate ...

Stars like our Sun have around the same overall density as water. But when a star collapses in its old age, and its material gets compressed by runaway gravity, the result is a brilliant white sphere ...

Science Scope is an award-winning, peer-reviewed, practitioners' journal for grade 6–8 teachers, university faculty responsible for teacher preparation, and state and district science supervisors and ...