Solar Energy

2. A typical star that is the source of light and heat for the planets in the solar system.
5. The partial or total blocking of one object in space by another
9. The part of a shadow surrounding the darkest part
11. earth is tilted in space by about 23.5 degrees on average and is responsible for earth's seasons.
13. a line of latitude about 23 degrees South of the equator
15. An imaginary circle around the middle of the earth, halfway between the North Pole and the South Pole
19. An imaginary line that passes through Earth's center and the North and South poles, about which Earth rotates
20. a line of latitude about 23 degrees North of the equator
21. shortest day of the year
22. the blocking of sunlight to the moon that occurs when Earth is directly between the sun and the moon
23. The day of the year that marks the beginning of fall in the Northern hemisphere
24. Refers to the spinning of our planet on its axis which takes 24 hours.

1. longest day of the year
2. Either of the two times of the year when the sun is at its greatest distance from the equator
3. The blocking of sunlight to Earth that occurs when the moon is directly between the sun and Earth.
4. Sunlight that strikes Earth from straight overhead; vertical rays.
6. The darkest part of a shadow
7. The two days of the year on which neither hemisphere is tilted toward or away from the sun
8. 66.5 degrees north latitude
10. This is the elliptical orbit of the Earth around the Sun. It takes 365.25 days to complete one orbit.
12. continuous daylight, a time when the sun is visible at midnight during the summer in either the Arctic or Antarctic Circle
14. Period in the polar regions in winter when the sun does not rise
16. 66.5 degrees south latitude
17. light rays that do not hit the Earth straight on
18. the day of the year that marks the beginning of spring in the northern hemisphere