Across
- 3. a vehicle that runs on rails
- 5. planting things sequentially to improve soil health
- 6. machine that separates cotton from its seeds
- 7. system in which letters are represented as signals
- 8. thing that stores energy and powers many things
Down
- 1. loom powered by various energy, rather than hand
- 2. uses steam to power
- 4. machine used for spinning wool or cotton