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Earth Science 101 Practice Test: Our Solar System
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Earth Science 101 Practice Test: Our Solar System
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21 Questions

1. Pluto is now classified as a ________ in our solar system.
2. ________ meteorites are thought to be analogous in composition to Earth's core.
3. Most of the Moon's craters were produced by ________.
4. ________, a moon orbiting Jupiter, has an unusually smooth, uncratered, ice-covered surface.
5. Which one of the following statements is believed to be true of comets?
6. Vast, circular to elliptical dark-colored, smooth areas of the Moon are known as ________.
7. ________ has the great, dark spot on its surface.
8. Which one of the following is not found on Mars?
9. ________ are small, extraterrestrial particles that glow brightly and burn up as they travel through Earth's atmosphere.
10. Compared to Earth's atmosphere, the atmosphere of Mars has surface pressures that are ________.
11. ________ are found both on Mars and Earth.
12. How did the lunar maria most likely originate?
13. ________ refers to the bright head of a comet.
14. Which one of the following is most likely to be associated both with impact craters and with volcanic calderas that originate by collapse?
15. The largest known volcano in the solar system is ________.
16. Which of these lunar features is the oldest?
17. ________ has atmospheric pressures at its surface that are roughly comparable to those at Earth's surface.
18. The ________ explains how our solar system probably formed from a giant cloud of gases and dispersed solid particles.
19. The surface features of ________ are known only through satellite radar mapping.
20. The high surface temperatures of this planet have been attributed to the greenhouse effect.
21. ________ is the principal gas in the Venusian atmosphere and also a minor component of the atmospheres of Earth and Mars.

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