Wind Energy Crossword

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Across
  1. 3. Wind energy is ______ energy.
  2. 5. The first wind farm is created at this time.
  3. 7. These use aerodynamic force to stay in the air.
  4. 8. Modern day windmills are called this.
  5. 10. These lines transfer electricity to homes.
  6. 13. This is where the electricity goes after being produced.
  7. 16. The first commercial windmill was called this.
  8. 17. This is the force that allows turbines to work
  9. 19. In the 12th century, windmills were used to grind this.
  10. 20. Turbines are a threat to this.
Down
  1. 1. Wind is used to sail the globe at this time.
  2. 2. Wind energy provides a lot of these for American citizens.
  3. 4. Turbines are _______ to replace.
  4. 6. The first wind farm was created and installed here.
  5. 9. Wind energy is a source of ________ energy
  6. 11. Turbines may be considered annoying because they're...
  7. 12. Wind energy has to compete with this other type of energy.
  8. 14. These flying machines utilize aerodynamic force.
  9. 15. The force that pulls the blades of a turbine up.
  10. 18. The force that pulls the blades of a turbine down.