Earth's Movement

2. a pattern that takes about 4 weeks to complete
5. The imaginary line through Earth that extends from the North Pole to the South Pole and is the center of Earth’s rotation
7. none, little, or half illumination
9. half, mostly, or full illumination
12. the rising and falling of the sea
13. half of a sphere; Earth can be divided into 2 hemispheres, western and eastern, or northern and southern
14. the pull caused by the gravity of an object
16. the spinning of Earth on its axis that causes day and night
17. when the moon is becoming “smaller” or less illuminated

1. the four natural divisions of the year based on changes in temperature because of how close it is to the sun
2. an appearance of the moon varying by how much it is illuminated
3. when the tide is at its highest
4. the movement of one object around a center or other object
6. when the tide is at its lowest
8. the slant of Earth’s axis
10. biggest difference in tides and during new or full moon phases
11. least difference in tides and during first and third quarter moon phases
15. when the moon is becoming “larger” or more illuminated