Earth, Moon, & Sun

2. one half of Earth, either northern or southern, that experiences opposite seasons
4. eclipse when Earth passes between the Sun and the Moon
7. an observation that can be measured (how many hours of light vs. dark) to support claims about changing seasons
10. phase of the moon when the lit side faces away from Earth and is not visible
13. one full trip Earth makes around the Sun
15. when the moon passes between Earth and Sun
16. the feature of Earth that causes sunlight to hit different latitudes at different angles during the year

1. the time it takes Earth to complete one revolution around the Sun
3. season in the Northern Hemisphere when it is winter in the Southern Hemisphere because that hemisphere is tilted toward the Sun
5. the amount of time for one rotation of Earth
6. moon phase when the lit side is fully visible
8. the force that keeps the planets in orbit
9. pattern of stars that appears to move across the night sky
11. Earth's tilt and revolution cause these
12. season in the Northern Hemisphere when sunlight is more indirect and days are shorter due to the tilt of Earth's axis
14. path a planet follows around the sun