Natural Resources

Name: ______________________   Date: ____________

Use the clues to fill in the crossword.

Across

  1. 4. A heavy odorless colorless gas formed during respiration and by the decomposition of organic (13)
  2. 6. Solid homogeneous inorganic substances occurring in nature having a definite chemical composition (plural) (8)
  3. 7. The power to do work or make things move (6)
  4. 8. A fossil fuel in the ___ state (10)
  5. 10. Strength or the ability to control things (5)
  6. 11. Of or relating to the heat in the interior of the earth (10)
  7. 13. Undesirable state of the natural environment being contaminated with harmful substances as (9)
  8. 14. Water at boiling temperature diffused in the atmosphere (5)
  9. 15. Clear liquid we drink that falls as rain (5)

Down

  1. 1. An increase in the average temperature of the earth's atmosphere (13)
  2. 2. A ___ that is driven by the ___ (11)
  3. 3. A dark oil consisting mainly of hydrocarbons (9)
  4. 5. Moving air (4)
  5. 9. Fossil fuel consisting of carbonized vegetable matter deposited in the Carboniferous period (4)
  6. 12. Slippery liquid used for cooking and fuel (3)
  7. 14. Relating to or derived from the sun or utilizing the energies of the sun (5)