de-, pre-, sci, ject, cract/cracy, geo, meter/metr, therm(o)

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Across
  1. 4. an opposing argument
  2. 6. device to measure temperature
  3. 9. to throw out by force
  4. 10. to leave
  5. 12. a government where one person has unlimited power
Down
  1. 1. all-knowing
  2. 2. aware
  3. 3. device that measures how fast something goes
  4. 5. to record in advance
  5. 7. the study of Earth's rock and soil
  6. 8. related to shapes and angles
  7. 11. distance around a shape