7 Science U3, L3 Nonrenewable Energy Resources

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Across
  1. 3. oil that is extracted from the ground and then refined into other products
  2. 4. the fossil fuel most widely used for generating electrical power
  3. 6. the first step of coal formation
  4. 7. the most common nuclear fuel
  5. 8. in most electrical producing plants, water is heated to form ______ to spin a generator
  6. 11. the hardest, cleanest burning form of coal
  7. 13. this form of nuclear reaction splits an atom into 2 parts to release energy
  8. 15. a resource that are used up faster than they can be replaced
Down
  1. 1. a liquid mixture of complex hydrocarbon compounds
  2. 2. these wastes from nuclear reactions are harmful for thousands of years
  3. 5. mining coal can disrupt the land and lead to loss of ______
  4. 9. petroleum and natural gas are formed from _________ organisms millions of years ago
  5. 10. all living things contain this element
  6. 12. _____ rain can form from burning coal which releases chemicals that combine with moisture in the air
  7. 14. a brownish haze that can form from burning fossil fuels that pollutes the air