Learn about household objects that sink and float in this easy-to-prepare activity. Learn about household objects that sink and float in this easy-to-prepare activity.

What: Earlier this summer we learned about density. Density is the amount of mass in a given volume, or amount of space. Mass is dependent on the number of molecules in an object. Objects that are ...

Use one of the services below to sign in to PBS: You've just tried to add this video to My List. But first, we need you to sign in to PBS using one of the services below. You've just tried to add this ...

WHENEVER I visit a classroom in one of our area schools, I am always amazed how much is being taught using various hands-on methods. This approach seems to be favored most in science and math classes.

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...