Energy Sources and the Environment

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Across
  1. 2. can corrode metals and cause harm to animals
  2. 4. element used on nuclear reactors
  3. 8. household wastewater
  4. 13. splitting of an atom to produce energy
  5. 15. can be replaced faster than used
  6. 16. flammable black liquid fossil fuel
  7. 19. converts radiant energy to electricity
  8. 20. pollution resulting from sunlight & car exhaust
  9. 21. poisonous, cancer causing, fire hazard
Down
  1. 1. largest # of individuals a area can have
  2. 3. any left over material from a reactor
  3. 5. cannot be replaced as fast as used
  4. 6. any substance that contaminates environment
  5. 7. formed from remains of ancient plants/animals
  6. 9. electricity produced from moving water
  7. 10. convert wind into electricity
  8. 11. Earth's heat to make electricity
  9. 12. fossil fuel found on top of oil
  10. 14. atomic nuclei are combined at high temps
  11. 17. one of the oldest sources of energy
  12. 18. clearing of forest for farming
  13. 19. all individuals of one species in an area