Convection Currents p. 14

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Across
  1. 7. heat always moves from a) warmer to colder OR b) colder to warmer substances
  2. 9. an example of radiation that warms Earth's surface
  3. 10. when a liquid or gas is heated, the particles move at a ______ speed
  4. 11. the flow that transfers heat within a fluid
  5. 12. what is more dense: water or rock?
  6. 13. radiation, conduction, and convection are the three types of ______
Down
  1. 1. when a fluid is heated, does its density decrease or increase?
  2. 2. heat transfer by the movement of currents within a fluid
  3. 3. the transfer of energy through space
  4. 4. convection currents continue as long as ____ is added
  5. 5. heat from the ____ and the mantle itself causes convection currents in the mantle
  6. 6. a measure of how much mass there is in a volume of a substance
  7. 8. heat transfer within a material or between materials that are touching
  8. 14. when a liquid or gas is heated, do the particles move apart or closer?