Transcript Planets - Part I

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By the end of today…
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SWBAT explain the differences between
Terrestrial planets and Jovian planets.
My
Very
Educated
Mother
Just
Served
Us
Noodles
Mercury
Venus
Earth
Mars
Jupiter
Saturn
Uranus
Neptune
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Key Point #1: There are two groups of planets. The
Terrestrial planets are the “inner planets,” while the Jovian
planets are the “outer planets.”
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Terrestrial Planets:
 Mercury
 Venus
 Earth
 Mars
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Jovian Planets:
 Jupiter
 Saturn
 Uranus
 Neptune
Pg. 63
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Key Point #2: The Terrestrial planets are small, dense,
and have rocky surfaces.
Pg. 71
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Key Point #3: The Jovian planets, or the “gas giants,” are much
larger and less dense than the Terrestrial planets. They are also
composed primarily out of gases.
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What does it mean for something to be less
dense?
Why does it make sense that the Jovian
planets are less dense?
How dense something ishow tightly
packed its mass is
 Jovians planets are made out of gas = less dense
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Discovered in 1930
After, realized that Pluto was very, very small.
Pluto has a weird orbit
Other larger objects around Pluto discovered
Exact definition of a “planet” voted on in
2006
Pluto declared a “dwarf planet” because it
did not meet the criteria
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List two differences between the Terrestrial planets and
the Jovian planets.