Unit 2 - Energy

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Across
  1. 2. energy from the heat inside the earth
  2. 4. the stored energy an object has because of its position
  3. 5. ______ potential energy is the energy stored up in substances due to their chemical bonds
  4. 6. energy in rays from sun
  5. 8. energy can be _____ into a different form - meaning you can change one type of energy into another type of energy
  6. 10. energy from moving air
  7. 13. what percent of the world's energy is supplied by fossil fuels
  8. 16. most of the energy we use comes from this, which is formed over millions of years from remains of dead plants and animals
  9. 18. ______ potential energy is the capacity for doing work based on the object's electric charge
  10. 19. one type of potential energy comes from Earth's ______
Down
  1. 1. means there is a limited supply and eventually it will run out
  2. 3. ______ potential energy is stored when materials stretch or compress
  3. 5. energy cannot be _____ or destroyed - which is called the Law of Conservation of Energy
  4. 7. black rock burned to make electricity
  5. 9. means they will never run out
  6. 11. fossil fuels are obtained through ______ and extraction inside the land and oceans
  7. 12. the energy of motion
  8. 14. moving something against force is called ______
  9. 15. _______ potential energy of the particles inside an atom
  10. 17. _____ is the ability to do work