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Motion of the Earth and the Moon

Use the following websites to learn about the different motions that our planet experiences and the consequences of those motions. . Be sure to press play on each of the graphics within the website. Then answer the questions below and write the definitions for the words in the vocabulary bank.

Vocabulary Bank

rotation: _____________________________________________________________________________________

axis: _________________________________________________________________________________________

revolve: ______________________________________________________________________________________

orbit: ________________________________________________________________________________________

ellipse: _______________________________________________________________________________________

plane of the elliptic: _____________________________________________________________________________

solar day: _____________________________________________________________________________________

sidereal day: ___________________________________________________________________________________

direct sunlight: _________________________________________________________________________________

indirect sunlight: _______________________________________________________________________________

summer solstice: _______________________________________________________________________________

autumnal equinox: ______________________________________________________________________________

winter solstice: _________________________________________________________________________________

vernal equinox: ________________________________________________________________________________

Questions

1. What motion of the earth causes us to experience night and day? ______________________________________

2. At what angle is the earth’s axis tilted? ____________________________________________________________

3. Why did the animation on the first page place east on the left side of the picture when east is normally placed on the right side of maps? _______________________________________________________________________ __________________________________________________________________________________________________________________________________________________________________________________________

4. What keeps the seasons changing on earth? ______________________________________________________

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5. How long is a solar day? ______________________________________________________________________

6. What pole is tilted towards the sun when it is summer in Colorado? ____________________________________

7. Where on the earth do you not experience seasons? ________________________________________________

8. Where on the earth do each of the seasons last about 3 months each? __________________________________

9. How would the seasons be affected if the earth did not revolve around the sun? __________________________

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Use for the following questions and vocabulary bank.

10. When did the moon form? ____________________________________________________________________

11. How do scientists think that the moon formed? ___________________________________________________

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12. How did the craters on the moon form? _________________________________________________________

13. How did the dark regions, or “seas,” form on the moon? ____________________________________________

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14. What are the “lunar highlands”? _______________________________________________________________

15. Does the moon have an atmosphere? ___________________________________________________________

16. What is meant by “geologically active” and is the moon still geologically active? _________________________

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17. Why does the moon seem to change shapes over the course of a month? ______________________________

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18. What is meant by “waxing” in terms of the moon? _________________________________________________

19. What is meant by “waning” in terms of the moon? _________________________________________________

20. How are the earth, moon, and sun oriented when it is a new moon? ___________________________________

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21. How are the earth, moon, and sun oriented when it is a full moon? ____________________________________

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22. What do scientists believe causes “moonquakes?” _________________________________________________

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23. What causes a full lunar eclipse? _______________________________________________________________

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24. What causes a partial lunar eclipse? ____________________________________________________________

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