Earth's Revolution
Across
- 2. A huge group of single stars, star systems, star clusters, dust, and gas bound together by gravity
- 3. Range The difference between the levels of the ocean between high and low tides
- 5. Darkest shadow of the moon
- 6. Tides Occur when the Sun Earth and Moon are in a straight line. High tides are higher than normal and low tides are lower than normal
- 8. The spinning of Earth on its axis, one full rotation takes 24 hours
- 15. The day when the sun is directly above the equator, twice a year in March and September
- 16. Tide The water level that is lower than the average sea level
- 19. unit (AU) the average distance between the earth and the sun
- 21. Force The difference on the gravitational force of the Sun and Moon across the earth
- 23. 23.5 degrees, causes seasons
- 24. Imaginary vertical line around which Earth spins
- 25. Tide The water level that is higher than the average sea level
Down
- 1. Shape of Earth's orbit, elongated closed curve
- 4. Eclipse When the Earth is directly between the Sun and the Moon, causing a shadow of the Earth to be cast on the Moon
- 7. You see more than one half of the moon
- 9. The study of the moon, stars, and other objects in space
- 10. Lighter shadow of the moon
- 11. Eclipse When the moon is directly between the Earth and the Sun
- 12. You see less of the illuminated side of the moon
- 13. The motion of Earth orbiting the Sun, one full revolution takes 365.25 days
- 14. Phases Different forms that the moon appears to take
- 17. You see more of the illuminated side of the moon
- 18. Occurs when the Earth Sun and Moon are perfectly aligned
- 20. The day the sun reaches it greatest distance north or south of the equator, twice a year in June and December
- 22. Tides Occur when the Sun Earth and Moon are arranged in a right angle. There is less of a difference between high and low tides.