1. Conduction, Convection, and Radiation
Heat Transfer
Conduction, Convection, and Radiation

2. Heat Transfer
Heat transfer is the movement of heat energy from a warmer item to a cooler item.
Remember, heat moves in predictable ways, from a high to a low.

3. Three Heat Transfer Situations
Conduction
Convection
Radiation

4. Radiation The transfer of Heat energy through the air or empty space.
Heat you can feel without touching it
Examples:
Sun
Fire
Light bulb

5. Radiation
How does heat energy get from the Sun to the Earth?
There are no particles between the Sun and the Earth so it MUST travel by radiation
RADIATION ?

6. Radiation Diagram

7. Conduction
Conduction is heat transfer through solids. Heat goes from one Object to another Object
Examples:
-Touching the bottom of an iron
-Washing your hands in hot water
-Touching a plate after you take it out the microwave

8. Conduction examples

9. Convection
-Is the movement of heat energy through the air or in liquids -Hot energy wants to rise -Cold energy wants to sink Convection is the primary way that heat moves through gases and liquids.

10. Heat movement mass so it will rise Cold so it will sink

11. Hot energy Rise and Cold Sink

12. Convection and Earth Science Connection