Energy

Edit Answers
12345678910111213141516171819202122232425
Across
  1. 3. A machine by which mechanical energy is changed into electrical energy.
  2. 6. gained from collecting the sun's light.
  3. 8. The transfer of heat by warmer portions rising and the colder portions sinking.
  4. 10. Flammable gas, consisting largely of methane and other hydrocarbons, occurring naturally underground (often in association with petroleum) and used as fuel.
  5. 12. Reduction in the number or quantity of something.
  6. 13. Power from using physical or chemical resources, especially to provide light and heat or to work machines.
  7. 16. The amount of energy a thing (as a weight raised to a height or a coiled spring) has because of its position or because of the arrangement of its parts.
  8. 17. A source of energy that is not depleted by use, but can be used over and over again.
  9. 19. The process of giving off radiant energy in the form of waves or particles.
  10. 20. Thermal energy generated and stored in the Earth using magma and water.
  11. 21. The movement of energy from one place to another.
  12. 23. Energy generated in ways that do not deplete natural resources or harm the environment.
  13. 24. An electric charge that lets work be accomplished.
Down
  1. 1. Energy from moving water.
  2. 2. The return of light or sound waves from a surface.
  3. 4. The energy released during nuclear fission or fusion, especially when used to generate electricity.
  4. 5. A device for changing an electric current into one of different voltage.
  5. 7. Organic matter used as a fuel.
  6. 9. The principal that energy cannot be created or destroyed, but can be altered from one form to another. Also, saving a resource for the future.
  7. 11. associated with motion.
  8. 14. A fuel (as coal, oil, or natural gas) that is formed in the earth from plant or animal remains.
  9. 15. Any natural resource that cannot be replenished by natural means at the same rates that it is consumed.
  10. 18. Energy stored in the bonds of chemical compounds (atoms and molecules). It is released in a chemical reaction, often producing heat.
  11. 22. Energy harvested from wind turning turbines.
  12. 25. A material through which charge can flow easily.