Chapter 1 review

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Across
  1. 2. humidity
  2. 4. mass x gravity
  3. 6. anemometer
  4. 8. O2
  5. 9. outermost portion of atmosphere
  6. 10. composed of hydrogen and helium
Down
  1. 1. question, hypothesis, predict, test
  2. 3. gasses surrounding a plant
  3. 4. directions
  4. 5. atmospheric pressure
  5. 7. particles suspended in the air
  6. 11. Ar