Attracted class members to an activity-packed journey through the science behind the invisible forces at work all around us. From jump rope generators to junkyard wars, there's never a dull moment when eighth grade physics scholars...

How does gravity affect the life cycle of a butterfly? Learn first-hand what types of investigations astronauts perform in space by following along with one of NASA's experiments. Create butterfly habitats in the classroom with specific...

Our bodies function necessarily under the presence of gravity; how blood pumps, a sense of balance and bone growth are all due to life in a world where gravity is an inescapable reality. Armed with experiments from neuroscientists David...

With a little help from Sir Isaac Newton, Matt J. Carlson explains the basic forces acting on an astronaut during a free fall. [2:59]

Join Maria and Boris the Astronaut in their journey. Learn about mass, weight, and gravity in space.

Watch NASA astronaut Don Pettit create zero gravity candy corn balls on the International Space Station. [2:57]