Turn off light Favorite PreviousNext Report
  • Server 1
0
BoredFineGoodAmazingExcellent (No Ratings Yet)
Loading...

Bill Nye The Science Guy Season 2 Episode 16

Things sure are heating up at Nye Labs.

Snow cones, flowers, hot dogs, people — everything is made of molecules. No matter what they’re in, solid, liquid, or gas, molecules are always moving, even if just a little bit. The speed of the molecules depends on their temperature. Cold things have slow-moving molecules, while hot things have fast-moving molecules. In fact, temperature is really a measurement of molecule speed. For a cold thing to get warm, its molecules have to speed up.

Heat moves in three different ways — conduction, convection, and radiation. Conduction is the flow of heat between two solid objects that are touching. Heat conducts from your warm fingertips into a cold can of soda. Convection is the transfer of heat with a liquid or gas. A hot bath feels warm all over not just where you’re sitting. Convection also happens naturally. When air gets warmed by a hot burner, it’s molecules speed up and spread out. Then, cold air molecules squeeze the warm spread-out molecules

Episode Title: Communication

Air Date: 1994-11-12

Year: