Across
- 4. an imaginary line through the North Pole and SouthPole about which Earth rotates.
- 6. The season experienced when the earth's axis is tilted TOWARD the sun
- 7. When day and night are equal length; occurs after winter.
- 12. One complete trip around the sun; causes a year on Earth
- 13. This is the longest NIGHT of the year in the Northern Hemisphere; First day of winter
- 14. The PATH an object takes when revolving around another object
- 15. The angle of Earth's incline at 23.5 degrees
- 16. the star that all other planets and celestial bodies revolve around
- 17. the northern end of Earth's axis of rotation
- 18. The spinning of an object on an axis; causes day and night
Down
- 1. an imaginary line dividing the earth into northern and southern hemispheres, with a latitude 0°.
- 2. This occurs in March and marks the beginning of spring in North America.
- 3. one half of a sphere; either the northern or southern half of Earth as divided by the equator
- 4. Occurs every September and marks the beginning of fall in North America.
- 5. the southern end of Earth's axis of rotation, a point in Antarctica
- 8. This is the longest DAY of the year in the Northern Hemisphere; First day of summer.
- 9. The result of Earth's tilted axis and the yearly revolution of the Earth around the Sun
- 10. When day and night are equal length; occurs after summer.
- 11. The season experienced when the earth's axis is tilted AWAY from the sun