Across
- 3. it started the industrial revolution, it used water vapour or steam to do work
- 4. we use this object to hold things together
- 5. we use it to move things across the ground easily
- 6. people use this invention to communicate by sending code messages
- 8. it is an object with a slanted surface that can cut things easily
Down
- 1. it is sth that begins as an idea and that later is created
- 2. it is a surface that goes from a low level to a high level
- 7. it is made up of a rigid bar and a fulcrum