Unit 7 Vocab Review

1. the half of Earth above the equator
3. the outer region of the sun’s atmosphere, seen as a white halo during a solar eclipse
6. an imaginary horizontal line around the middle of Earth
7. the first day of winter, ie the shortest day of the year
10. an eclipse in which the moon’s shadow passes over part of the earth and blocks the sun’s light
14. a gradual increase in air temperature near Earth’s Surface
17. the southernmost point on Earth
18. the transfer of thermal energy from a warmer object to a cooler one
19. the half of earth below the equator
20. the partial shadow beyond the region of the umbra
21. an eclipse in which the moon passes through part of the earth’s shadow

1. the northernmost point on Earth
2. sun that strikes earth at an angle less than 90 degrees (acute)
4. the first day of summer, ie the longest day of the year
5. sunlight that strikes the Earth’s surface at close to a 90 degree angle
8. the darkest part of a shadow, totally blacked from the light source
9. an event in which a planet or moon passes through the shadow of another planet or moon
11. an imaginary line through the center of Earth that connects the North to the South Pole, Earth’s tilt is 23.5 degrees
12. a gas in Earth’s atmosphere that absorbs and re-radiates heat
13. one of the major divisions of the year, usually based on regular weather changes
15. atmospheric heating caused by certain gases in Earth's atmosphere that absorb heat
16. one of the two days a year during which the direct rays of the sun reach the furthest point from the equator