Across
- 4. plane - slope
- 7. - ability to do work
- 8. - push or pull an object
- 9. energy - heat within the earth
- 10. cracker - second class lever
Down
- 1. - the resistance that one surface or object encounters when moving over another
- 2. - the person who discovered buoyant force
- 3. machine - machines which make work easier and faster
- 5. jack - used to lift heavy objects
- 6. force - upward push of water