Across
- 5. A very small organism that causes a disease
- 6. A chemical substance in the form of liquid
- 7. powder for removing dirt from
- 8. To make something impure or unsuitable
- 9. A chemical liquid that destroys bacteria
- 10. a disease
Down
- 1. The process of keeping the surroundings clean
- 2. of Getting rid of by throwing away
- 3. When another organism enters your body and
- 4. Rubbish or waste