Solar Radiation - Giles

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Across
  1. 4. primary source of energy for all things on Earth
  2. 5. all living things on Earth are in this sphere.
  3. 6. (two word answer, put a _ between)resources that can easily be replenished
  4. 9. (two word answer, put a _ between)the type of system that allows energy in and out but not matter.
  5. 10. (two word answer, put a _ between)resources that cannot be replenished easily
Down
  1. 1. (two word answer, put a _ between) The system that allows energy and matter to move in or out.
  2. 2. the solid earth with the crust, mantle and cores.
  3. 3. all water on earth goes into this sphere.
  4. 7. the physical and biological world that occurs naturally on earth.
  5. 8. the thin layer of gases around our planet keeping us alive.