Name: ______Due: Wednesday, December 18th; Test: Dec. 19th

**Keep a copy of the review in your Nicky folder so we can answer them in class J.

**Do what you can, then have your questions ready to ask your science teacher in class or before school.

Spaced-Out Systems Review
Space Vocabulary
1.  Compare rotate vs. revolve. Illustrate and label an example of both. / Rotate:
Pic:
Revolve:
Pic:
2.  Define the word axis and illustrate what an axis might look like.
3.  How long does it take Earth to make a full rotation on its axis?
4.  What causes Earth to have sunlight on half of it? / 2. Axis:
Pic:
3. Time for Earth’s full rotation axis:
4.
5.  Define orbit and provide an example.
6.  How long does it take the Earth to orbit around the sun? / Orbit:
Pic:
6. Time for Earth to orbit:
Lunar (______) Cycles
7.  About how long does it take the moon to orbit around the Earth?
8.  Name things that the moon orbiting around Earth contributes to: / It takes the moon about ______to orbit/revolve around Earth.
Moon orbiting around Earth causes:
Moon’s gravity as it orbits causes:
9.  Describe the lunar cycle.
10. Draw and describe what each phase looks like and about how many days passes between each phase
·  New moon:
·  Waxing crescent:
·  First quarter:
·  Waxing gibbous:
·  Full moon:
·  Waning gibbous:
·  Third/last quarter:
·  Waning crescent: / Lunar cycle:
Moon phases picture and elapsed time between each:

11. Pick a random month and day. Suppose that the full moon occurred on that day you chose. Approximately when would next new moon occur? When will the next full moon occur? Explain why. / Month/day of full moon:
Next new moon day:
Next full moon day:
Why:
Planets
12. Illustrate the difference between an orbital & a linear model of our solar system (include sun, planets, and asteroid belt) and discuss the advantages and disadvantages of each perspective.
**Label the planets in order from the sun on the linear model. / Orbital model:
Linear model:
13. What object & force keeps the planets in orbit?
14. What would happen if we didn’t have this force? / Object:
Force:
If we didn’t have it:
15. Why don’t all planets have 24 hours in their day or 365 days in a year? / Why all planets don’t have 24 hours or 365 days in a year:
16. Which object in our solar system would you weigh the most on? Why? / Object in solar system:
Why:
Tides
17. What causes tides?
18. Approximately how long does it take for a high tide to change to a low tide? / Tides depend on:
There are usually ____ high and ____ low tides every day.
There is about _____ hours between high tides.
There is about _____ hours between low tides.
Between high and low tide is usually about ______hours.
Circle an answer:
If there is a high tide at 2:34 a.m. on Saturday, the next high tide will happen around: 1:45 p.m., 5:00 p.m., 2:34 a.m., or 10:30 a.m.
Seasons
19. Why does the Earth have seasons? Draw and label how the Earth would look during summer vs. winter in relation to us in Texas. Be sure to label Northern and Southern Hemispheres.
20. What other parts of the world have the same seasons as the United States? Why? / Earth has seasons due to:
2 pics total of Earth & Sun during winter vs. summer for Texas:
Countries with the same seasons as we do:
Because we are all in the ______hemisphere.
21. How do seasons affect plants, animals, and amount of sunlight? / Plants:
Animals:
Amount of sunlight:
Shadows
22. What is a sundial? How does it work?
23. Draw you at a sundial that would produce a large shadow (don’t forget to draw the sun)
Approximately what times of day would you cast a large shadow? / Sundial:
Pic. with large shadow (2 pictures):
Times of day:
24. Draw you at a sundial that would produce a small shadow (don’t forget to draw the sun)
Approximately what times of day would you cast a small shadow? / Pic of small shadow (1 picture):
Time of day:
Sun, Earth, Moon Characteristics
25. Draw the orbits (include arrows) between the Sun, Earth, and Moon. /

26. Draw a 3-way Venn diagram and list similarities & differences between the Sun, Earth, & Moon.
Include:
o  Gravitational pulls
o  Orbits
o  Atmosphere
o  How the sun hits the Earth & moon
o  Temperatures
o  Which ones help with tides?
o  Characteristics of each
o  What they’re made of
o  Sizes compared to each other
o  Support of life
o  Rotations
o  Revolutions /


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