Across
- 3. making a change to something
- 5. a muslim tower
- 9. a slow process of change
- 11. study of animals
- 13. to live forever
- 15. devices to measure latitude
- 18. built to move water
- 19. city of the House of Wisdom
- 20. where Muslims face to pray
Down
- 1. a math invented by Muslim
- 2. city where the Hall of Wisdom was located
- 4. study of planets and stars
- 6. a house of worship
- 7. something empty
- 8. something new
- 10. shows you direction you are traveling
- 12. place to be treated for illness
- 14. culture that influence Muslim scholars
- 16. what the earth does
- 17. muslims improved them for navigation