Across
- 3. Lets doctors see inside the body without surgery
- 5. Powers lights, machines, and homes.
- 6. Machines that help farmers plow and plant crops faster
Down
- 1. The two men who made the first successful aeroplane.
- 2. A new machine on roads that replaced horses and buggies.
- 4. Flies through the air and amazed Canadians in the early 1900s.