Across
- 3. solar system biggest star
- 4. illness named after a medieval term for ‘poor air
- 6. the only rock that floats
- 7. the biggest planet in our solar system
- 11. largest human organ
- 12. the hardest natural substance on Earth
- 14. cat species that lives and hunts in packs
- 15. This gas is important so that we can breath
- 16. What is chalk made of?
- 17. tissue connecting the muscles to the bones
Down
- 1. the largest desert in the world
- 2. the highest mountain in Africa
- 3. common substance with the chemical formula of NaCI
- 4. the study of mushrooms
- 5. the color of octopus blood
- 8. tallest grass species
- 9. Au is the chemical symbol
- 10. the most abundant element in the universe
- 13. number of rainbow color
- 16. heaviest organ in the human body