Covid Cross Word 1

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Across
  1. 3. speed of molecules
  2. 4. balance
  3. 8. temperature and mass together
  4. 10. What a new unused battery has
  5. 12. doesn't let hot go to cold easily
  6. 14. made of atoms
  7. 17. can't create or destroy
  8. 18. makes mass do stuff
Down
  1. 1. no particle movement at all
  2. 2. motion turned into electricity
  3. 5. heat movement through solids
  4. 6. heat movement through nothing
  5. 7. 3d space
  6. 9. push or pull
  7. 11. lets heat go easily from hot to cold
  8. 13. moving object has this
  9. 15. smallest chemical piece
  10. 16. heat movement through fluids