Across
- 6. sloping surface that makes it easier to move or lift an object
- 7. simple machine used to apply a ton of force with little force
- 9. rigid object that turns around a fixed point
- 13. energy powered by wind
- 14. 2 Simplemachines
- 15. energy that can not be reused
- 16. energy from the sun and heat
- 17. energy stored
- 18. movement of atoms and molecules heat
- 20. energy moving through substances
- 22. energy from underground
- 24. helped people to make work easier but not to do the work for them
- 25. movement of a substance to one to another
- 26. used to raise an object or to split an object
- 28. energy by burning coal,oil, and gasses
Down
- 1. heat through waves
- 2. energy that can be reused
- 3. heat directly touching
- 4. energy moving
- 5. energy from rushing water
- 8. energy stored in bond
- 10. movement of electrons
- 11. heat through currents
- 12. when a force moves an object
- 19. energy stored in a a atom
- 21. always an act against an object
- 23. the axle goes through the wheel
- 27. made up of a wheel and a rope or cable
- 28. push or a pull