chemistry

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Across
  1. 3. A negatively charged subatomic particle.
  2. 4. The difference from the lowest to the highest values
  3. 7. Firm and stable in shape
  4. 9. Amount of matter in an object
  5. 10. A space between two things or people.
  6. 13. Extending down
  7. 18. Burned to produce heat or power
  8. 20. Something that is required and directly contributes to a result
  9. 21. Measure of the amount of matter in a object.
  10. 22. How fast something travels
  11. 24. Something carried by a missile
Down
  1. 1. Increase in volume due to temperature
  2. 2. How quickly something moves in a given direction
  3. 3. The capacity or power to do work
  4. 5. The degree to which a substance is compact
  5. 6. The amount of space that a substance or object occupies
  6. 8. A substance that flows freely but has a constant volume
  7. 11. A chemical species donating protons
  8. 12. To do something again
  9. 14. Two or more objects have an effect upon one another
  10. 15. A subatomic particle with a positive charge
  11. 16. To lower or go down
  12. 17. Objective of an ambition or effort of a person
  13. 19. To make greater, as in quantity or extent
  14. 23. A fluid that fills all the space in a container