Across
- 2. Energy that holds protons and neutrons together in the nucleus
- 7. A dark liquid fossil fuel made up mostly of mostly hydrocarbons
- 8. Deposits of moist sand and clay containing bitumen
- 12. The splitting of an atom's nucleus into to smaller nuclei
- 15. The practice of reducing energy use
- 16. Energy made available by the flow of an electric charge
- 17. When sulfide minerals in exposed rock react with oxygen and rainwater to produce sulfuric acid
- 19. Energy that is nearly always available somewhere on Earth's surface or replaced in a relatively short time
- 20. The energy that an object has due to its motion
Down
- 1. Chemical compounds that are derived from oil and used to make products
- 3. The extraction a mineral by removing a strip of the layers of soil and rock on top of a mineral deposit
- 4. When two hydrogen nuclei are forced together releasing energy and a neutron, forming a nucleus of helium
- 5. an ice-like solid that consists of molecules of methane within a crystal network of water molecules
- 6. Typically he practice of digging shafts deep into the ground to find and remove a mineral
- 9. Radioactive material left over from the production of energy and other processes
- 10. This generates electricity by controlled fission reactions
- 11. Rock filled with a mixture of hydrocarbons
- 13. Energy that cannot be replaced such as coal, oil, and natural gas
- 14. Energy that is stored
- 18. The ability to do work or cause a change