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Across 4. Energy resources formed from ancient decayed organisms 5. Upward less ______ than surrounding rock 7. Produced by splitting nuclei of the certain elements 11. Hot liquid that is near the earth core 13. Fossil fuels- used up faster than nature can replaced them 14. Most common element used in nuclear power plants 16. Using moving water 17. Uses energy from the sun 18. Many windmills in one area 19. Holds water in 20. Formed from swampy reigons from decayed algae, plankton, and sediment

Down 1. Uses the magma and hot rocks beneath the earths surface 2. Name for the splitting process 3. _______ and heat cause a chemical reaction 6. Caused by buringing fossil fuel 8. Caused from nuclear waste 9. Changes lights into electricity 10. When magma is close to the earth surface 12. Gases released by burning coal or oil mixed with water in the air 15. Energy that can be recycled or replaced