Earth Day Crossword

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Across
  1. 1. the layer of gases that surround the earth
  2. 4. renewable ____________does not create air pollution
  3. 6. 71% of the Earth is covered by the ___________
  4. 7. ______________dioxide is an odorless gas in the atmosphere
  5. 11. __________panels generate electricity from the sun
  6. 12. ______________ vehicles do not use gas for fuel
  7. 13. instead of throwing something away, it is better to ________ it.
Down
  1. 2. in photosynthesis, plants convert sunlight and carbon dioxide to sugar and ________
  2. 3. eating more of these is good for you and for the planet!
  3. 5. oil, natural gas and coal are made from __________ and animals that lived millions of years ago
  4. 8. Earth day is held in which month every year?
  5. 9. hydroelectricity is made from moving ___________
  6. 10. the movement of air which can generate electricity