Physical and chemical properties

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Across
  1. 2. (physical) red, green, blue, and so on
  2. 3. (chemical) a scale that measures acids and bases
  3. 9. (physical) solid, liquid, or gas at room temperature
  4. 10. (physical) how shiny the object is
  5. 11. (physical) rough or smooth
  6. 13. (physical) the point liquid turns to gas
  7. 14. (chemical) how easily it ignites
  8. 15. (chemical) how poisonous it is
Down
  1. 1. (chemical) can burn through skin
  2. 4. (physical) how well it resists scratches
  3. 5. (physical) bending when force applied (flexible)
  4. 6. (physical) how much matter (atoms) packed in a volume
  5. 7. (chemical) if it reacts with other chemicals
  6. 8. (physical) whether it conducts electricity or not
  7. 9. (physical) how well it dissolves in water
  8. 12. (physical) the point solid turns to liquid