| A | B |
|---|
| heat | energy caused by motion of particles in matter |
| molecules | tiny particles that make up matter |
| heat transfer | movement of heat from a warmer to a cooler object |
| conduction | movement of heat by direct contact |
| convection | movement of heat in an up and down motion of molecules in a gas or liquid |
| radiation | movement of heat that is transferred through empty space |
| conduction example | bacon cooking in a pan |
| radiation example | air above the grassland warming up in the sun, causing a violent thunderstorm |
| radiation example | the warm of a fireplace heating up a person in the room |
| what happens when molecules heat up? | Molecules move more vigorously. |
| Which type of heat transfer involves the movement of molecules? | convection |
| Which kind of air is more dense? | cold air |
| What causes heat? | molecules moving |
| What is an insulator? | a material that conducts heat energy poorly |
| What is a conductor? | a material that conducts heat energy quickly and easily |
