Science Extra Credit

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Across
  1. 7. Same # of protons but not same # of electrons
  2. 9. 2 compounds trade elements
  3. 11. On the left side of the periodic table
  4. 12. Irreversible change, changes atoms
  5. 13. Reaction that creates flame
  6. 14. Amount of space an object occupies
  7. 16. Table that sorts natural elements
  8. 18. Release of heat; warm
  9. 19. Found in the nucleus; Positive charge
Down
  1. 1. Absorption of heat; cold
  2. 2. replacement Element replaces another in reaction
  3. 3. Change Changes physical shape of an object
  4. 4. Two things interact & something occurs
  5. 5. On the left side of the periodic table
  6. 6. 2/more reactants combine to create 1 product
  7. 8. Result of a reaction
  8. 10. Negative charge; carrier of electricity
  9. 13. Bond Bond between 2 non-metals
  10. 15. Another word for formula
  11. 17. + or - charged atom