Chapter 1 Astronomy

2. during a total lunar eclipse the moon is in Earth's _________________.
8. when sun pulls at right angle to moon and tides have least difference between high and low
9. when tides are at their lowest low and highest high
10. when we are seeing less of the moon
11. the 2 factors that combine to keep Earth and the moon in their orbits
12. the Earth has these because it's axis it tilted as it moves around the sun
13. these structures on the moon were formed from ancient lava flows
16. the temperature of the moon's surface varies greatly from day to night because the moon does not have one of these
19. this can occur during the full moon phase
21. Earth's rotation around its axis takes 24 of these

1. this occurs when the new moon is directly between the Earth and the sun
3. it takes the Earth about 1 year to complete this around the sun
4. all objects are attracted to each other by this force
5. occur when the sun, Earth, and moon are nearly in a line
6. the strength of the force of gravity depends on these 2 things
7. the tendency of a moving object to continue moving in a straight line or a stationary object to remain in place
14. when we are seeing more of the moon lit up
15. a pattern or group of stars imagined by people to represent a figure
17. you never see this side of the moon because the moon rotates once for each revolution around Earth
18. the different shapes of the moon seen from Earth
20. this occurs when neither hemisphere is tiled towards the sun