Simple Machines
Across
- 4. _____ is a type of slope that makes it easier to lift something.
- 6. Machines make our _____ easier.
Down
- 1. _____ help us to do work.
- 2. a pulley is made from wheel and ______.
- 3. some machines increase the _____ of work.
- 5. a weight balance is a type of ______.