CASCADE, Mich. — Looking for a fun activity to do at home with your kids? This science experiment is fun for all ages and teaches how oxygen and carbon dioxide have different densities! Meteorologist ...

The metallic asteroid Psyche has mystified scientists because it is less dense than it should be. Now, a new theory by researchers including scientists at the University of Arizona could explain ...

When we talk about density, we refer to the amount of space an object or substance takes up (volume) in relation to the amount of matter in that object or substance (mass). We work it out by dividing ...

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 ...