The Solar System Question Preview (ID: 36226)


Test 7. TEACHERS: click here for quick copy question ID numbers.

The planet that has nearly the same diameter as Earth is
a) Venus
b) Mercury
c) Mars
d) Jupiter

It is difficult for astronomers to study Mercury because
a) its atmosphere is so thick
b) it is made mostly of gases
c) it is so close to the sun
d) it is so large comparred to other planets

The high temperatures on Venus' surface is due to
a) the greenhouse effect
b) high winds
c) the thin atmosphere
d) liquid waqter on its surface

What are Venus' clouds made of?
a) only carbon dioxide
b) a mixture of oxygen and nitrogen
c) mostly droplets of sulfuric acid
d) only oxygen

Which is a correct comparison of daytime and nighttime temperatures on Mercury?
a) Daytime temperatures never exceed 200 C, and nighttime temperatures never droop below 100 C
b) During the day, temperatures may reach up to 510 C, and during the night, temperatures may reach -210 C
c) Both day and night temperatures are usually below -100 C
d) Both day and night temperatures are usually above 400 C

What two gases make up most of Earth's atmosphere?
a) oxygen and water vapor
b) oxygen and argon
c) nitrogen and carbon dioxide
d) nitrogen and oxygen

What is Jupiter's atmosphere composed of?
a) oxygen and carbon dioxide
b) mainly hydrogen and helium
c) only hydrogen
d) only helium

Saturn's rings are made of
a) chunks of ice and rock
b) very dense gases
c) water vapor trapped by Saturn's gravitational field
d) droplets of liquid helium

In a geocentric system,
a) the sun is at the center of the revolving planets
b) Earth is at the center of the revolving planets
c) only the sun revolves around the Earth
d) Earth revolves around the moon

What is an ellipse?
a) a cube like shape
b) a perfect circle
c) a sphere
d) a slightly flattened circle, or oval shape

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