True/False
Indicate whether the sentence or statement is true
or false.
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| 1. | Saturn's density is so low that the entire planet could float in water.
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| 2. | The
surface of Mars has long channels that may have been caused by flowing water.
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| 3. | The
outer planets are small, rocky planets with iron cores.
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Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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| 4. | This
planet has no true atmosphere. a. | Mars | c. | Jupiter | b. | Saturn | d. | Mercury | | | | |
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| 5. | Water
is found as a solid, liquid, and gas on ____. a. | Mercury | c. | Earth | b. | Venus | d. | Mars | | | | |
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| 6. | Scientists no longer think ____ should be called a planet. a. | Neptune | c. | Uranus | b. | Pluto | d. | Saturn | | | | |
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| 7. | Mercury is the ____ planet from the Sun. a. | fourth | c. | second | b. | third | d. | first | | | | |
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| 8. | Venus
and Earth both experience a ____ because of heat trapped by their atmospheres. a. | cloud
cover | c. | greenhouse
effect | b. | slow rotation | d. | cooling effect | | | | |
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| 9. | ____
is the largest planet in the solar system, is the fifth planet from the Sun, and has colorful clouds.
One of its 17 moons is the most volcanically active object in the solar system. The planet has a
liquid ocean and atmosphere comprised mostly of hydrogen and helium. It may have a rocky core,
although its extreme pressure and temperature would make the core different from any rock on
Earth. a. | Jupiter | c. | Uranus | b. | Saturn | d. | Neptune | | | | |
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Matching
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Match the planets below with the letters labeling the planets in Figure
24-1.
Figure 24-1
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| 10. | Earth
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| 11. | Mercury
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| 12. | Neptune
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| 13. | Venus
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| 14. | Uranus
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| 15. | Pluto
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| 16. | Mars
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| 17. | Saturn
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| 18. | Jupiter
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Figure 23-1
Match each description with the correct term
below. a. | first
quarter | d. | third
quarter | b. | full moon | e. | solar eclipse | c. | new
moon | f. | lunar
eclipse | | | | |
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| 19. | occurrence caused by Earth's coming between the Sun and the Moon and casting its
shadow on the Moon
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| 20. | Moon
phase in which none of the lighted surface of the Moon can be seen from Earth
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| 21. | waxing Moon phase in which one half of the Moon's lighted surface can be seen from
Earth
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| 22. | occurrence caused by the Moon's being between the Sun and Earth and casting its shadow
on Earth
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| 23. | phase
in which all of the lighted side of the Moon can be seen from Earth
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| 24. | waning Moon phase in which one half of the lighted side of the Moon can be seen from
Earth
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Essay (2pts)
Please answer the following question in a complete
paragraph.
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| | 25. | What
is NASA’s definition of a planet, and why is Pluto no longer considered one?
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