blake's crossword

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Across
  1. 7. is a type of matter that contains only one particle
  2. 10. an item that allows energy to go through them
  3. 11. the process of turning a liquid to a gas
  4. 12. is responsible for changes either adding or subtracting (removing) heat
  5. 13. is made of tiny particles
  6. 15. is the average amount of molecules
  7. 16. is the process of splitting atoms
Down
  1. 1. is a very very small piece of matter
  2. 2. tempature is messured in this unit
  3. 3. heat liquid gas
  4. 4. an item that blocks energy
  5. 5. transfer heat and energy
  6. 6. is a type of matter that contains only one kind of particle
  7. 8. the smallest particle in matter
  8. 9. the amount of space an object takes up
  9. 11. is the movement of elcetrons
  10. 14. the amount of material that makes up an object