Nathan's crossword therm

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Across
  1. 3. equal to 1,000 calories is a unit of heat
  2. 5. something that adapted to a temperature
  3. 6. something used to control the temperature
  4. 8. heat that is caused or operated to different forms of energy
  5. 9. heat that the body makes
Down
  1. 1. needs to have heat absorbed from outside the body
  2. 2. something to keep things warm
  3. 4. something to measure temperature
  4. 5. a device that records temperature
  5. 7. connected to temperature or heat