Crossword

12345678910
Across
  1. 3. something that cannot be created or destroyed
  2. 4. this happens during a chemical reaction
  3. 7. when the equation is not equal
  4. 8. it makes up everything
  5. 9. what is made after a chemical reaction
Down
  1. 1. that comes after the reaction
  2. 2. when the equation is equal
  3. 5. the math part of it
  4. 6. what comes before the reaction
  5. 10. can make new substances