Across
- 1. a combination of 2 or more substances.
- 5. Change directly from solid to gas.
- 6. process of separating magnetic things.
- 7. removing unwanted substances through hand.
- 9. parts of something.
Down
- 2. in which seeds are separated from plant.
- 3. separation of lighter impurities from heavier material by tossing in air.
- 4. separation of smaller piece from larger piece by passing material through a sieve.
- 8. unwanted or harmful substance.