CMDV+1.2

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Vocabulary

 * Heat Transfer**: The movement of energy from a warm object to a cooler object.
 * Radiation**: The transfer of energy through empty space.
 * Conduction**: Heat transfer by direct contact of particles of matter.
 * Convection**: Heat transfer by the movement of a heated fluid.
 * Density**: Measure of how much mass there is in a volume of a substance.
 * Convection Current**: A flow that transfers heat within a fluid.

**Outline**

 * ===**Radiation**===
 * ===**Conduction**===
 * ===Convection===
 * **Convection in Earth's mantle**