Harper's Crossword Puzzle

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Across
  1. 2. A substance changes and forms a brand new substance.
  2. 6. The substance present before a chemical change occurs.
  3. 11. When heat is released and the surrounding area becomes more hot.
  4. 13. Form of energy that transfers.
  5. 15. A characteristic that measured without changing a substance.
  6. 16. The amount of matter in an object.
  7. 17. Anything that has volume and weight.
  8. 18. The ability to do work.
Down
  1. 1. The substance that is formed during a chemical reaction.
  2. 3. Absorbing heat makes the surroundings colder.
  3. 4. Characteristic that can be found during a chemical change.
  4. 5. A specific type of matter.
  5. 7. The study of properties and changing matter.
  6. 8. The smallest unit of matter.
  7. 9. A group of atoms bonded together.
  8. 10. The measure of how hot or cold an object is.
  9. 12. When a substance goes through a change but is still the same substance.
  10. 14. Ability of two of the same molecules to stick together.