test review

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Across
  1. 8. piece of evidence of a chemical reaction, such as temperature change, odor, light or sound
  2. 9. sum of all the forces
  3. 13. The ___ says matter is neither created nor destroyed.
  4. 15. piece of evidence of a chemical reaction, such as bubbles, foaming, fizzing
  5. 17. ___ forces cause change in motion.
  6. 18. the formulas present at the end of a chemical reaction
  7. 21. a push or pull
  8. 23. any change in speed or direction
  9. 25. a column on the periodic table
  10. 26. one piece of an element
  11. 27. the formulas present at the beginning of a chemical reaction
Down
  1. 1. a process where new substances are formed
  2. 2. one type of atom, also found on the periodic table
  3. 3. piece of evidence of a chemical reaction, such as clear to blue
  4. 4. unit for mass
  5. 5. a row on the periodic table
  6. 6. Balanced forces have a net force of ___ N.
  7. 7. unit for acceleration
  8. 10. amount of matter
  9. 11. more than one atom combined
  10. 12. tells the number of molecules
  11. 14. ___ forces cause no change in motion.
  12. 16. tool for force
  13. 19. tells the number of atoms
  14. 20. unit for force
  15. 22. piece of evidence of a chemical reaction, such as two liquids producing a solid
  16. 24. more than one type of atom