Matter Crossword

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Across
  1. 5. Anything that has Mass and volume
  2. 9. Not easily reversed
  3. 11. Elements with properties of metals and nonmetals
  4. 13. A substance made from atoms with the same atomic number
  5. 14. Beginning substances
Down
  1. 1. Measurement of matter
  2. 2. Smallest unit of an element
  3. 3. Resulting substances
  4. 4. Measurement of the amount of space occupied
  5. 6. Substance that is normally liquid or solid, but is currently a gas
  6. 7. Very high Kinetic energy, makes up stars
  7. 8. Matter with a variable compositions, made from two or more substances
  8. 10. Process of releasing energy
  9. 12. Substance made of atoms from two or more elements that are chemically bonded
  10. 15. Process of absorbing energy