Most Viewed Keyword Science - 7

In his laboratory, an oceanographer conducts temperature and salinity tests to determine the necessary conditions for the micro-algae Protoceratium...

This instructional film shows the three parts of a lever and demonstrates how various levers help to move things more easily, or move them farther...

"Army Ants: A Study of Social Behavior" explores the complex social structures and behaviors of nomadic tropical army ants, which have evolved over...

At only twelve inches long, the menhaden are a keystone species in the East Coast's marine ecosystem, yet their numbers are threatened by...

This film covers the basics of atomic theory while addressing the moral issues inherent in yielding such godlike power.

Shows the properties of different solvents, including their electrical conductivity or lack of it. Shows how they affect the boiling point of water....

An educational film about the nervous system produced by Encyclopædia Britannica Films, an educational film production company in the 20th...