Across
- 2. Single-celled, prokaryotic organisms
- 4. A birds have scales on their wings
- 8. The substance known by the chemical formula NH3
- 9. How many stars has the American flag got?
- 11. A device for measuring temperatur
- 12. Body parts, to listened
Down
- 1. Destroying all bacteria with high temperature for a long time
- 3. The planet is nearest the sun
- 5. Girl or woman wear them on their neck
- 6. How many kidneys does a normal person have
- 7. device used to measure the air pressure
- 10. How many stars feature on the flag of New Zealand?