PAPA+1.2

toc =Convection Currents and the Mantle=

Vocabulary

 * Heat Transfer**: The transfer of heat from a warm object to a cold object.
 * Three Types of Heat Transfer**: Radiation, Conduction, Convection
 * Radiation**: Heat that is transfered through empty space
 * Conduction**: Heat transfered by direct contact of particles of matter
 * Convection**: Heat transfered by movement of hot liquids or fluids
 * Density**: A measure of how much mass there is in a volume of substance
 * Convection Current**: The flow that transfers heat within a fluid.

Radiation

 * Suns heat, Fires Heat
 * Heat transfered by empty space

Conduction

 * touching anything thats hot
 * Particles near bottom of the spoon vibrate faster as they are heated
 * Spoon in a pot of hot soup
 * Would get hotter slowly

Convection

 * moves in cycle, cold water moves from top to bottom and heats back up then goes back up to the top
 * This is called convection currents

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