Test Review: Astronomy!

3. This moon phase is the start of the next lunar month.
5. This equinox begins on September 21st.
6. The force created by Earth that keeps the moon orbiting us.
7. The star that is positioned directly above Earth's north axis.
10. These are caused by the moon's revolution around the Earth.
13. These change from month to month in the night sky.
15. This is caused by the Moon's gravity pulling on the oceans of the world.
16. December 21st is the start of the _____solstice.
17. Tilt and revolution are responsible for Earth's______.
18. These plants are small, rocky and closest to the sun.

1. During this moon phase a Lunar Eclipse can occur.
2. The unit of time for orbiting the sun one time.
4. These planets are gas giants, have low densities and are farthest from the sun.
8. The path all objects take around the sun.
9. This describes the motion of the Moon around the Earth.
11. Earth ______takes 24 hours.
12. The amount of time it takes for the moon to go through all 8 phases.
14. On an ______, everyone on Earth experiences 12 hours of day and 12 hours of night.