1. Thermal Energy
Conduction, Convection and Radiation

2. How Heat Travels warmer cooler Conduction Convection Radiation
Heat moves from ________ matter to ________ matter.
Heat moves in 3 different ways:
__________
warmer
cooler
Conduction
Convection
Radiation

3. Conduction heat direct contact Definition:
The transfer of __________ through a material by ___________ __________.
Examples:
heat
direct contact
A metal spoon gets hot quickly in hot cocoa
An iron heats up the material it comes in contact with.

4. Heat transfer by Conduction
Note that in metals, heat is transferred through free-moving electrons, and in other substances through moving atoms.
*images from

5. Convection fluid movement Definition:
The transfer of heat in a __________ (gas or liquid) as a result of the ______________ of the fluid itself.
Examples:
fluid
movement
Boiling pasta in water.
Wind currents.

6. Heat transfer by Convection
Note that the warm material rises, cools at the surface and then sinks in a circular pattern.
*animation from

7. Radiation electromagnetic waves space Definition:
The transfer of heat via __________________ _________ through ___________ .
Examples:
electromagnetic
waves
space
The heat from the sun melting ice cream.
The heat from a campfire.

8. Review All Three B. A. C.

9. Animations of Conduction, Convection and Radiation
Teacher's Domain Animations
Movie of convection in the sun
Effect of heat on atoms