Fossil Fuel Crossword

Across
1. nation’s largest oil field
4. long metal tubes of enriched uranium
5. a rotary engine driven at a very high rate of speed
6. Organization of Petroleum Exporting Countries
9. Uranium 235 and Plutonium 239 are spilt by neutrons in a nuclear fission chain reaction
11. Artic National Wildlife Refuge
13. coal converted to liquid fuel
15. a fossil fuel produced by the decomposition of dead organic matter from plants and microscopic organisms buried deeply and subjected to high pressure and temperature
16. also called surface mining
18. a solid fossil fuel formed from decaying plant material under heat and pressure
19. overheating of nuclear core that results in enough heat to melt the materials in the core
20. Resources that exist as finite deposits in the Earth’s crust and are not replenished as they are mined
Down
2. amount of work done by an electrical current over a given time
3. a mixture of methane, and other hydrocarbons
7. nuclear power plant disaster in the Ukraine
8. the percentage of total energy input that does useful work in an energy conversion system
10. spilled 11 million gallons of crude oil into Prince Edward Sound
12. the total useful energy available from the resource over its lifetime minus the energy used or wasted
14. energy sources derived from prehistoric photosynthetic production of organic matter
17. nuclear power plant in Pennsylvania that suffered a partial meltdown