renewable & nonrenewable resources

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Across
  1. 1. a liquid fossil fuel used for energy which was formed through heat and pressure, from the remains of ancient plants and animals
  2. 7. the wise use of natural resources wisely in order to protect them
  3. 8. the ability to do work or cause change; can be changed into different forms and can move between objects
  4. 12. KE=1/2 mv^2
  5. 13. Wind turbines convert the kinetic energy in the wind into mechanical power (Inexhaustible)
  6. 14. something that cannot be used up, or has limitless energy
  7. 15. getting energy by burning wood, and other organic matter ( renewable)
  8. 16. a fossil fuel used for energy which was formed, through heat and pressure, from the remains of ancient plants and animals
  9. 17. Flowing water creates energy that can be captured and turned into electricity (inexhaustible)
  10. 18. PE=mgh
Down
  1. 2. may change form but can't be created or destroyed under conditions
  2. 3. radiant energy emitted by the sun (Inexhaustible)
  3. 4. heat energy generated and stored in the Earth (Inexhaustible)
  4. 5. a hard, black substance extracted from the ground and burned to obtain energy, a non-renewable fossil fuel
  5. 6. come from the decay of organisms buried in sediments that are pressed tightly together for millions of years, at very high temperatures
  6. 9. the energy released during nuclear fission or fusion, especially when used to generate electricity
  7. 10. a material found in nature that is useful to humans
  8. 11. total amount of kinetic energy & potential energy in a system