7. Be able to work with the small angle formula
8. Be able to work with angles in arc sec, arc min, and degrees.
9. What causes the seasons on Earth?
10. What is the altitude of the North Star in Riydah? On the Equator? At the North Pole?
11. What are circumpolar constellations?
12. What is the ecliptic?
13. What causes the Moon to go through phases?
14. When does a total lunar eclipse occur?
15. What happens during a total lunar eclipse?