Earth's Rotation and Seasons

2. A sequence of events that repeats itself.
3. The slant of Earth’s axis, which is 23.5 degrees from vertical compared to Earth’s orbital plane around the Sun; results in the North Pole always pointing toward the North Star.
5. The third planet from the Sun and the only planet in the solar system where life exists.
7. Angled or spread out.
10. A curved path followed by a satellite as it revolves around an object.
11. A dark area made by blocking light from reaching a part of the surface.
13. The outline of something.

1. Half of a sphere; Earth and the celestial sphere can be divided into northern and southern or eastern and western hemispheres.
4. The star at the center of the solar system that supplies heat and light to Earth; its enormous gravity keeps the solar system in orbit.
6. Making a complete spin on an axis.
8. In the shortest unbroken line.
9. The movement of one object around a center or another object.
11. The four natural divisions of the year based on changes in temperature due to varying amounts of sunlight received (both intensity and number of daylight hours vary); caused by the tilt of Earth during its revolution.
12. The imaginary line through Earth that extends from the North Pole to the South Pole and is the center of Earth’s rotation.