Comparisons
Mercury
Venus
Mars
$200
AA
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Mercury
What planet’s size is between
the size of the moon and
Mars?
$400
Phases
Mercury and the moon both
have _____________ due to
the fact the sun lights only a
portion of the surface from
our viewpoint.
$600
Similar size, density and surface gravity
How are Venus and Earth
alike?
$800
Almost the same
How does Mars’ tilt on its axis
compare to ours?
$1000
Venus has a thick cloud cover that prevents us
from easily seeing the surface. We use radar to
map the surface. Mars atmosphere is thin so we
can see surface detail from Earth. We have
landed spacecraft on Mars, whereas spacecraft on
Venus have been short lived.
Why do we know about the
surface of Mars vs. Venus?
$200
It is so close to the sun.
Why can’t we view Mercury
from Earth?
$400
The surface of the moon
Mercury’s surface most
resembles?
$600
It has no atmosphere to moderate
temperatures
Why is Mercury hot during
its day and so cold during its
night?
$800
It’s rotation is 2/3 as long as it’s year (tidal
resonance)
How does Mercury’s rotation
relate to it’s revolution?
$1000
The interior cooling and shrinking
The scarps on Mercury are
formed from?
$200
LargeShield volcano on Venus
Maxwell Mons is a
$400
Raised the temperature by hundreds of
degrees celsius
What has the greenhouse
effect done on Venus?
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A continent (plateau)
What is Aphrodite Terra?
$800
Sulfuric Acid
What is the composition of
the clouds of Venus?
$1000
It’s Slow Rotation
Why does Venus not have a
magnetic field?
$200
It is farther away, less reflective
Why does Mars appear fainter
in the night sky than Venus?
$400
Phobos and Deimos
Name the two moons on
Mars?
$600
24 hours 36 minutes
How long is a day on Mars?
$800
Valles Marineris and Olympus Mons
What is the Solar Systems greatest Canyon and
greatest volcano?
$1000
Runoff channels, recent mudflows,
sedimentary rock formed under water. It is
also frozen in the polar ice caps and perma
frost
What evidence is there that
water existed on Mars?