Transcript The Inner planets

The Inner planets
Aka: Terrestrial planets
Mercury
Closest planet to the sun
 About the size of our moon
 Mercury has a very thin atmosphere. The
gasses were super hot and moving fast.
So fast that the atmosphere escaped the
weak gravity.
 Typical Temp: H= 430°C L=-170°C
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Venus
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Seen from earth just after sunset in the west.
Also known as the evening star.
So close to the size of the earth that it is called
“Earth’s Twin”
Venus rotates on its axis so slowly its day is
longer than a its year
Very hostile atmosphere. The atmosphere
pressure is 90 times greater than ours.
Venus clouds are made of sulfuric acid.
Typical Temp. A constant 460°C Hot enough to
melt lead.
Mars
Called the “Red Planet”
 Water does exist on Mars locked up as Ice
on the North Pole.
 Home to Olympus Mons the largest
volcano in the solar system. It is 3 times
larger than Mt. Everest. Or 90,000 Feet
tall!
 Temperatures H= -17°C L= -107°C
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Relative size of the planets