PBS
Pbs Learning Media: Testing Insulators: Ice Cube in a Box
Watch the ZOOM cast discover which insulator -- newspaper or aluminum foil -- is better at keeping an ice cube frozen longer. [4:58]
PBS
Pbs: Nova: Cooking With Bill Nye
Join Bill Nye in his short demonstration showing conservation of thermal energy. The famous television scientist explains why this simple, but important scientific concept is relevant. [2:26]