When you think about HEAT what comes to

When you think about HEAT what comes to mind? Conduction Convection Beach Sun Heat Transfers Summer Ovens Radiation Waves

Heat Transfers • 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.

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.

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 metals), but not as well in liquids and gases (air and water do not conduct heat very well. ) • Examples include feet on hot sand, a hand warmer, a pot on a stove, heat passing through the Earth.

Convection • The transfer of heat by the movement of a fluid (molecules of liquids and gases) is called convection.

Can you identify this? • The Sun! • Dark spots (sunspots) are cooler. Brighter spots are hotter.

Convection COLD HOT • 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.

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

When a pot is touching a stove that is on, what heat transfer is happening?

The way the heat is moving through a hot cup of coffee is called. . .

This is a lava lamp. When the light bulb heats the wax, the wax rises. When the wax cools, it falls. This cycle of rising/falling is an example of:

The baby chickens are kept warm from the heat lamps demonstrates this type of heat transfer.