Across
- 4. tidal energy uses what gravitational forces?
- 5. what is the huge dam called?
- 7. first stage of converting water into electricity
- 11. is the conversion into electrical power easy or hard?
- 13. what does the flow of tides do to the air through a pipe?
- 14. is the energy supply reliable or not?
- 15. what type of energy does it make?
- 17. caused by?
Down
- 1. large rotating generators
- 2. where does the water flow through when the tide goes in and out?
- 3. what water levels are involved in the second stage of the conversion?
- 6. what does the water usually carry out to sea?
- 7. what converts the energy of tides into useful forms of power?
- 8. which is more predictable wind energy, tides, or solar power?
- 9. what allows the ships to pass?
- 10. what is the main form of power?
- 12. energy that tells the difference between high and low tide
- 16. what can the flow of tides do to a turbine?