Across
- 2. used to make steel
- 4. acids and...
- 7. made up of one type of atom
- 9. separating two liquids
- 10. sleep up digestion process
- 11. property of a metal
Down
- 1. type of fossil fuel
- 3. chemical reaction in plants
- 5. a state of matter
- 6. horizontal row in the periodic table
- 8. H2O