Seasons and Tides Crossword

3. Another name for the North Star, Earth's axis points here.
4. Half of a sphere, or half of the Earth.
7. Rotation causes ______ and night.
9. Spinning motion of the Earth on its axis.
12. The number of seasons we experience here on Earth.
13. Imaginary line that passes through Earth from the North Pole to the South pole.
16. The hemisphere we live on.
18. The movement of an object around another object.
19. Moon phase when the moon appers to be completely dark.

1. Moon phase when the moon appears to be fully illuminated.
2. The length of each season in months.
5. An imaginary line that divides the earth into two hemispheres.
6. Regular changes in temperature that repeat every year.
8. The daily rise and fall of of the water levels in oceans.
10. Tides that happen twice a month with the least difference between high and low tides.
11. ___________clockwise - the direction the earth moves around the sun.
14. Tides that happen twice a month that cause higher than noraml high tides.
15. Elliptical (oval) curved path that an object takes around another object or center of gravity.
17. The reason for the seasons.