Energy Review

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Across
  1. 2. This describes a fuel that can't be renewed
  2. 4. This energy source is stored energy
  3. 9. All energy on Earth starts with this
  4. 10. This helps block light from the sun and protects Earth
  5. 11. This uses radiation from the sun that is stored in batteries that generate electricity
  6. 14. This type of clean energy uses turbines to generate electricity
  7. 16. This energy source comes from movement
  8. 19. These currents are created when warm air rises and cold air sinks
  9. 20. This gas traps heat in our atmosphere
  10. 21. This refers to how tightly packed molecules are
  11. 23. This type of energy comes from a source that won't run out
  12. 24. This energy source uses heat from Earth
  13. 25. This energy source uses the power of tides
  14. 26. This fuel source comes from mines and is burned to generate electricity
Down
  1. 1. This describes an energy transfer that involves touch
  2. 3. This is often used for heat and cooking
  3. 5. This is pumped out of the ground and turned into gasoline
  4. 6. This traps heat in our lower atmosphere, keeping Earth warm
  5. 7. How energy moves using rays or waves
  6. 8. This describes energy that's used to complete a task
  7. 12. Warm air is less _________ than cold air
  8. 13. These are made from ancient plants and animals
  9. 15. This uses the energy of falling water
  10. 17. This energy source is found is food and batteries
  11. 18. When the amount of energy coming in equals the amount of energy going out, this is balanced
  12. 22. This energy source creates heat