Across
- 2. The mechanical process to seperate solids from the fluids
- 5. Chemical formula for Ammonia
- 6. Blue litmus paper turns ______ under acidic conditions.
- 9. An indivisible and basic unit of matter
- 11. A strong base that dissolves in water
- 12. Unit of measurement of time
- 13. It is definded as mass divided by volume
Down
- 1. The process through which a substance changes from liquid to solid
- 3. The centre of an atom is called _____
- 4. It is a study of matter and the changes it undergoes
- 7. Positive ions are called ______
- 8. The only metal that is in liquid form at room temperature
- 10. Anything that has mass and occupies volume