Fireworks

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Across
  1. 2. Subject about things in motion
  2. 7. angles in the air
  3. 8. a physical combination of two or more substances
  4. 10. produces yellow and gold colors
  5. 11. oxidizer in fireworks
  6. 13. we all must protect
  7. 14. colorful blast in the sky
Down
  1. 1. makes fireworks whistle
  2. 3. makes fireworks green
  3. 4. gives up oxygen
  4. 5. firework engineers
  5. 6. subject about chemicals
  6. 9. powder used to make fireworks
  7. 12. the most important thing