Across
- 4. They built a set of pillars that were very helpful with their job of time keeping.
- 6. The advanced stage of human social, cultural and organisation.
- 7. A collection of planets and stars.
- 8. A combination of shared beliefs, values and practices.
- 10. predicted eclipses based on the movement of the moons and planets.
Down
- 1. Used Greek astronomy ideas but incorporated complex maths to better calculate the circumference of the Earth.
- 2. The long gone past which is no longer in existence.
- 3. Made the most persistent and accurate observations of celestial phenomena before the Arabs.
- 5. The first to recognise that astronomical events are periodic.
- 9. A massive ball of hot gas that sits in the centre of the solar system.