Mechanical Tools and Devices

Across

1. Device that moves air forcefully

5. Fastener with a spiral thread

8. Machine that moves heavy materials

11. Mischievous creature from folklore stories

12. Wearing away of soil or rock

Down

2. Tool for climbing up or down

3. Ancient weapon with pointed tip

4. Engine that powers a vehicle

6. Start to be or grow into something

7. Foot operated lever on a bicycle

9. Forest protector or park official

10. Tool for boring holes in wood