Science; Layers of the Atmosphere

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Across
  1. 3. The layer that absorbs harmful radiation
  2. 5. A low pressure zone near the equator
  3. 6. 78% of this gas is found in the atmosphere
  4. 9. Where space shuttles and satellites orbit Earth
  5. 12. Chemicals used in cooling systems, etc. that break down in the stratosphere and release ozone-destroying chemicals
  6. 14. Electromagnetic waves that directly transport energy through space
  7. 15. A thick layer of Earth that forms a protective barrier around Earth
  8. 16. The layer closest to Earth in the atmosphere
  9. 17. Sailors and sea merchants find this wind very helpful
  10. 18. True or False; Contour lines never cross each other
Down
  1. 1. The transfer of heat energy through matter from place to place (when touching)
  2. 2. Carbon dioxide, methane, and Nitrous oxide are __________ ______
  3. 4. Water boiling is an example of ___________
  4. 7. Fog and smoke combined makes ______
  5. 8. Uneven heating of the Earth's surface causes ______ _____
  6. 10. Layer known for its hot temperatures
  7. 11. A layer of electronically charged particles that allows radio waves to travel
  8. 13. The layer that contains ozone gas and planes