1. EARTH IN SPACE
STUDY GUIDE

2. 1.The path one object makes around another is called a(n) _______________.
ORBIT

3. 2. A complete journey around the sun
revolution

4. 3. Imaginary line between the North and South Poles on which the Earth rotates:
axis

5. 4. During a(n) _______________, days and nights are nearly equal everywhere on Earth.
equinox

6. 5. A(n) _____________________ is a point in which days are longest in one hemisphere, and shortest in the other.
Solstice

7. 6. ___________________ is a complete turn around the axis.
rotation

8. Autumnal Equinox (Fall Equinox)
7. The ________________________ is on or around March 21 in the Southern Hemisphere.
Autumnal Equinox (Fall Equinox)

9. 8. The ____________________ is on our around December 21 in the Northern Hemisphere.
Winter Solstice

10. 9. Our galaxy is called the __________________.
The Milky Way

11. 10. ___________________ is the basis for civil time used today.
Coordinated Universal Time

12. 11. ___________________ was once used as the international civil time standard.
Greenwich Mean Time

13. 12. Olive Branch, Mississippi is located in the _________________.
The Central Time Zone

14. 13. _______________________ are areas sharing the same time
Time Zones

15. 14. Why do globes lean sideways?
To represent the tilt of the Earth’s axis

16. The equator receives the same amount of direct sunlight year- round
15. Why does the area around the equator stay the same temperature year-round?
The equator receives the same amount of direct sunlight year- round

17. 16. If you live in the Northern Hemisphere, on which day of the year will your hometown receive the most daylight?
June 21st

18. 17. Unlike the poles, where the length of each day changes drastically throughout the year, the length of each day at the equator is:
consistent

19. 18. What happens after the autumnal equinox?
Days get shorter

20. 19. How many time zones are in the U.S?6

21. 20. How many time zones are on Earth?24

22. 21. Earth’s orbit around the sun causes ____________
seasons

23. 22. Earth’s rotation around its axis causes ________________
Day and night

24. 23. If it is 12:00 PM in Olive Branch, what time is it in Washington D
23. If it is 12:00 PM in Olive Branch, what time is it in Washington D.C?
1 P.M.

25. 24. The number of time zones on earth is equal to:
The number of hours in a day

26. 25. If it is summer in Europe, what season is it in South America?
winter

27. a b d c e f
Alaskan Time Zone b. Hawaiian Time Zone c. Mountain Time Zone d. Pacific Time Zone
e. Central Time Zone f. Eastern Time Zone