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Heat Transfer

movement of energy from a warmer object to a cooler object

Three types of Heat Transfer

Radiation, Conduction, and Convection


the transfer of energy through empty space.

Two examples of Radiation

Sunlight and heat from a campfire


Heat is transferred by direct contact of particles of matter.

Example of conduction

Placing a spoon into a pot of boiling water, the heat from the water is transferred to the spoon and eventually to your hand if you touch the spoon.

Particles of Heat

they move faster and bump into one another.


Heat transfer by the movement of a heated fluid, heat is transferred from one part of the fluid to the other parts.

Convection Currents

The flow that transfers heat within a fluid created from the heating and cooling of the fluid.

Process of Convection Currents

Dense fluid sinks (cooler) as less dense fluid (heat) rises creating currents

Fluid at a constant temperature

currents stop, Fluid rises creating boiling to take place.

Convection in the Mantle

convection currents, heated by the core and the mantle,flow into the Asthenosphere. the hot mantle rises and the cool mantle sinks. repeats.

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