Global Systems Crossword - Matilda Brown

12345678910111213141516171819
Across
  1. 2. the layers of gases surrounding the planet
  2. 3. fuels that contain the carbon of plants & animals that died millions of years ago and were preserved
  3. 6. continuous movements of water in the ocean
  4. 8. all the liquid water on Earth's surface
  5. 10. periods between glaciations
  6. 12. the heating effect of the Earth's atmosphere
  7. 14. layer in the Earth's atmosphere that absorbs ultraviolet rays
  8. 15. the land masses on Earth
  9. 16. cycle where carbon is recycled through soil, water living things & the atmosphere
  10. 18. has the chemical equation CO₂
  11. 19. the preserved remains of things that were once living
Down
  1. 1. process where nitrogen travels between living and non-living environments
  2. 4. areas on Earth where the temperature in the layers of rock or soil never goes higher than freezing point
  3. 5. an environment that can sustain and support itself without outside influence or help
  4. 7. are circular patterns shown by ocean currents in ocean basins
  5. 9. day to day conditions of a particular place
  6. 11. is a time when the average temperature of the world is increasing
  7. 12. gases that trap heat close to the surface of the Earth
  8. 13. long-term averages of an areas weather conditions
  9. 17. all things that are living on Earth