Bill Nye the Science Guy
Season 2 Episode 10 - Heat
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.
Episodes in Season 2
Magnetism
26 min
Wind
26 min
Blood & Circulation
26 min
Chemical Reactions
26 min
Static Electricity
26 min
Food Web
26 min
Light Optics
26 min
Bones & Muscles
26 min
Oceanography
26 min
Heat
26 min
Insects
26 min
Balance
26 min
The Sun
26 min
Brain
26 min
Forests
26 min
Communication
26 min
Momentum
26 min
Reptiles
26 min
Atmosphere
26 min
Respiration
26 min
