JLKR+1.2

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Vocabulary

 * heat transfer-** movement of energy from a warmer object to a cooler object
 * radiation-** transfer of energy through empty space
 * conduction-** heat transfer by direct contact of particles of matter.
 * convection-** heat transfer involving the movement of fluids
 * density-** a measure of how much mass there is in a volume of a substance
 * convection current-** a flow that transfers heat with a fluid


 * Outline**


 * Convection Currents and the Mantle**


 * Introduction**
 * Radiation
 * Conduction
 * Convection


 * Heat Transfer**
 * Radiation


 * transfer of energy through empty space
 * no direct contact
 * Conduction


 * direct contact of particles of matter
 * Convection


 * movement of a heated fluid
 * convection currents
 * a flow that transfers heat with a fluid
 * stops when all the material has reached the same temperature
 * Convection in Earth's Mantle


 * responds to heat
 * heat source is the core
 * currents have been moving inside Earth for more than 4 billion years