Science puzzle

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Across
  1. 1. Stored energy
  2. 3. push or pull
  3. 5. makes up the periodic table
  4. 7. moving energy
  5. 10. transfers heat
  6. 12. measures the length of a wave
  7. 15. when a material is changed physical but not chemically
  8. 16. pulling two bodies together
Down
  1. 2. building blocks of an organism
  2. 4. when a material is changed in to a new substance
  3. 6. made up of elements
  4. 8. there is three of them
  5. 9. a group of atoms
  6. 11. neither be created nor destroyed
  7. 13. Noble gas
  8. 14. is made up of mass