Across
- 1. kinetic friction
- 3. What percent of the USA coal is exported
- 7. how does a meltdown occur
- 8. Name a type of fossil fuel
- 10. Since fossil fuels take hundreds of millions of years to form they are considered
- 12. why inset hydrogen used commonly used
- 14. fuel formed by mixing gasoline and alcohol
- 15. the prosses to make oil
- 16. comes from digging deep in the ground
- 18. wood plant manure waste
- 19. Turns a turbine
- 21. What is coals main use
- 23. oil When fuel is pumped from the ground
Down
- 2. a limitation to solar energy
- 4. when atoms fuse
- 5. What is oil mainly used for
- 6. Movement of electrons
- 9. is the least used energy
- 11. central core of an atom
- 13. is bio mass renewable
- 17. Compounds that make up oil
- 20. Why inset fusion commonly used today
- 22. what is the most efficient energy source
- 23. What gas is emitted from cars