1. Why does the Earth have day and night?
2. How long does the Earth’s rotation take?
3. How long does one complete revolution
around the sun take?
4. Why does the Earth have seasons?
5. Where on Earth are the sun’s rays the
6. Why do we only see one side of the
7. What determines which phase of the
moon you will see?
8. What will you see when the moon goes
from a new moon to a full moon?
9. Which two phases of the moon have the
same amount of light visible from Earth?
10. What has to happen for a solar eclipse to
11. During what phase can a lunar eclipse
12. Why don’t we see a lunar eclipse every
13. What are tides mainly caused by?
14. What is special about March 21? How
many hours of daylight compared to
darkness do you see?
15. What type of eclipse occurs when the
Moon passes through the Earth’s shadow?
16. What determines the length of a year on
17. How large is the Moon compared to
18. How do Scientists think the Moon was
19. What are the round pits or bowls that
Galileo saw on the Moon called?
20. Why can we see the Moon at night?
21. What is the phase of the Moon during a
22. What is the darkest part of the Moon’s
23. What caused the craters on the Moon?
24. Where does the sun rise?
25. What does the Earth move around each
26. Why do day and night occur differently on
different parts of the Earth?
27. What is the Southern Hemisphere
experiencing when the Northern
Hemisphere is experiencing summer?
28. What angle would Earth’s tilt have to be to
have no seasons?
29. How does the gravity on the Moon
compare to the gravity on Earth?
30. About how much time does it take the
Moon to revolve around the Earth?
31. Why is only one side of the Moon visible
32. What would happen if Earth’s rotation
33. What causes the phases of the Moon?
34. What process did early life-forms use to
release oxygen into Earth’s atmosphere?
35. What is our Moon’s atmosphere made of?
Label the different phases of the Moon, below.
36. 37. 38. 39.
40. 41. 42. 43.
By looking at the diagram, determine what phase is at each number.