Across
- 3. a wheel with a grooved rim around which a cord passes over and is used to lift heavy objects
- 4. A rod connected to a pivot used to move heavy objects
Down
- 1. A flat surface on an angle used to help move heavy objects between 2 levels
- 2. an object with one thick end and tapering to a thin edge, that is driven between two objects or parts of an object to secure or separate them.