Instructional Video3:30
SciShow

Are Blue Eyes Endangered?

12th - Higher Ed
SciShow explains the genetics -- and physics -- behind why blue eyes are blue, and what the future may be for the trait. Spoiler alert: Blue eyes aren’t really blue! SciShow explains!
Instructional Video6:38
Professor Dave Explains

Types of Colloids and Their Properties

12th - Higher Ed
Earlier we learned that as far as mixtures go, we can have homogeneous solutions, or totally heterogeneous mixtures, where components don't mix. But there are actually intermediary mixtures, where substances mix to some limited degree....
Stock Footage0:04
Getty Images

Beijing sunset

Pre-K - Higher Ed
Beijing sunset