Across
- 6. Farming
- 7. A mixture of rock salt and river water
- 8. A method used to produce salt from the underground
- 9. Production activity
Down
- 1. Keeping the temperature as we want
- 2. Removing all water by boiling it
- 3. Melting or removing the ice
- 4. Rock salt
- 5. The structure of salt particles
- 8. By hand