Science crossword

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Across
  1. 1. Weaker flame than the spirit burner but last longer
  2. 6. You put two or more products together to make this
  3. 8. Strong flame but doesn't last as long as a candle
  4. 9. Where heat exits the object
  5. 12. The break down of chemical compound to its elements through heat
  6. 14. You put one or more together to make a product
  7. 15. Another name for the elements in the 7th row of the periodic table
Down
  1. 2. Where heat is absorbed in by a reaction
  2. 3. Elements on the periodic that don't go under the numbers
  3. 4. In the first row,beginning with the letter L
  4. 5. the most reactive element ever
  5. 7. When a compound containing oxygen loses the oxygen
  6. 10. In the first row, beginning with the letter P
  7. 11. Reactions where an element combines with oxygen
  8. 13. You need a fuel and oxygen to make this and makes waste products of water and carbon dioxide
  9. 16. In the first row, beginning with the letter S