The Greenhouse Effect

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Across
  1. 4. Planet with an atmosphere mostly made of carbon dioxide.
  2. 7. layer of the atmosphere.
  3. 8. Greenhouse gas with formula CH₄.
  4. 10. Region beyond Earth’s atmosphere.
  5. 11. that traps heat energy.
  6. 14. Gas needed for respiration.
  7. 15. release absorbed energy again.
  8. 17. where meteorites burn up.
  9. 19. containing the ozone layer.
  10. 20. Most common gas in Earth’s atmosphere.
Down
  1. 1. Trapping of the Sun’s heat in Earth’s atmosphere.
  2. 2. Radiation emitted by Earth’s surface.
  3. 3. where auroras occur.
  4. 5. Greenhouse gas with formula N₂O.
  5. 6. To take in radiation.
  6. 9. Gas used by plants in photosynthesis.
  7. 12. bounce radiation back.
  8. 13. of gas surrounding Earth.
  9. 16. Greenhouse gas with formula H₂O.
  10. 18. Greenhouse gases keep Earth’s surface this.