Across
- 1. an object that has weight.
- 3. The use of pressured gas to provide short bursts of pressure.
- 10. The use of triangles to strengthen a structure.
- 11. Something that connects two objects.
- 12. Something that will support an object or a load.
- 13. This tool is used to make marks on metal or hard plastic.
Down
- 2. Not being at work or school.
- 4. drive a Mechanical system which consists of a continuous chain that runs over toothed wheel.
- 5. Structure which is manufactured, for example, a bridge.
- 6. This tool is used to cut thin metal or plastic.
- 7. Major blood vessel.
- 8. a Mechanical system which consists of a wheel with a groove in it and a rope.
- 9. a wound to some part of your body.