Changes In Matter: Lessons 1 & 2

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Across
  1. 3. NEW SUBSTANCES CREATED AFTER A CHEMICAL CHANGE.
  2. 6. THE MOST REACTIVE HALOGEN GAS.
  3. 7. METAL USED ON SPACECRAFTS.
  4. 8. METAL USED FOR WHEEL BRAKES ON SPACE SHUTTLES.
  5. 9. SUBSTANCES BEFORE A CHEMICAL CHANGE.
  6. 15. THE MOST REACTIVE METALS ON THE PERIODIC TABLE.
  7. 16. SOMETHING THAT ALLOWS HEAT & ELECTRICITY TO FLOW THROUGH EASILY.
  8. 18. WHEN METAL CHANGES COLOR FROM REACTING WITH OXYGEN OR SULFUR.
  9. 19. HOW EASILY A SUBSTANCE TAKES PART IN A CHEMICAL REACTION.
Down
  1. 1. THE SOFTEST METAL.
  2. 2. ANOTHER NAME FOR IRON OXIDE.
  3. 4. DURING A CHEMICAL REACTION, THE ATOMS & MOLECULES IN THE REACTANTS ARE ___________.
  4. 5. A METAL THAT MELTS AT 30°C.
  5. 10. A MIXTURE OF TWO OR MORE METALS AND NONMETALS.
  6. 11. A GOOD CONDUCTOR OF HEAT AND ELECTRICITY.
  7. 12. A LIQUID METAL USED IN BAROMETERS & THERMOMETERS.
  8. 13. AN ALLOY MADE OF COPPER AND TIN.
  9. 14. THE TOTAL MASS OF THE REACTANTS EQUALS THE TOTAL ________ OF THE PRODUCTS.
  10. 17. ANOTHER NAME FOR A CHEMICAL CHANGE IS A CHEMICAL ___________.
  11. 20. SOMETHING THAT HEAT & ELECTRICITY WON'T FLOW THROUGH EASILY.