Jacob energy puzzle

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Across
  1. 3. example of a lever
  2. 5. energy of broken down plants and animals
  3. 8. Example of convection
  4. 12. energy through propellers
  5. 21. Machine using a wheel and rope
  6. 22. The ability to do work
  7. 23. Cannot be remade
  8. 27. heat transfers through direct touch
  9. 28. energy by dams
  10. 29. Energy coming through the earths heat
Down
  1. 1. example of a wedge
  2. 2. Heat from the sun
  3. 4. Panels to harvest the sun
  4. 6. 2 incline plains put back to back
  5. 7. A post and a wheel
  6. 9. a example of conduction
  7. 10. 2 machines put together
  8. 11. strait bar moving on a fixed point
  9. 13. a tool to make work easer
  10. 14. A spiral incline plane
  11. 15. the measurement for work
  12. 16. heat transfers through liquid and gases
  13. 17. Example of a screw
  14. 18. Example of wheel and axle
  15. 19. example of a pulley
  16. 20. another word for ramp
  17. 24. Example of a wedge
  18. 25. Measurement for distance
  19. 26. example of radiation