1. When you think about HEAT what comes to mind?
Conduction
Convection
Beach
Sun
Heat Transfers
Summer
Ovens
Radiation
Waves
VA Science SOL 6.3 b

2. Heat Transfers
Heat goes
from to
The energy transferred from a hotter object to a cooler one is referred to as heat.
Heat is transferred in three ways: radiation, conduction, and convection.

3. Radiation
The heat you feel from the sun or a campfire travels directly to you as infrared radiation.
You cannot see infrared radiation, but you can feel it as heat.

4. Conduction
The direct transfer of heat from one substance to another substance that it is touching is called conduction.
Conduction works well in some solids (such as land and metals), but not as well in liquids and gases (air and water do not conduct heat very well.)

5. Conduction
Some materials, like metal, transfer heat more easily than others…
A thermal infrared image of a coffee cup filled with a hot liquid. Notice the rings of color showing heat traveling from the hot liquid through the metal cup.

6. Convection
This thermal infrared image shows mud pots, hot springs that do not have much water. Clay mixes with hot water to create mud. Hot steam rising from below causes the mud to bubble and pop.
Infrared Mud Pots
The transfer of heat by the movement of a fluid (molecules of liquids and gases) is called convection.

7. Convection
Warm air rises! The upward movement of warm air and downward movement of cool air forms convection currents.
Heat transfer in the air or water is an example of convection.
COLD
HOT

8. Energy in the Atmosphere
Heat transfer by radiation
Heat transfer
by convection
Heat transfer
by convection
Heat transfer by conduction
Heat energy in the troposphere is transferred by a number of ways.

9. Some of this information came from the Prentice Hall, Science Explorer, 6th grade edition, 2004 book.