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Size and Scale of
the Universe Review
Solar System Review
The rocky planets are
closest to the Sun.
The rocky planets are
smaller than the gas
giants.
Solar System Review
The rocky planets have
fewer moons (0 to 2).
The rocky planets’ days
are long (24 hours to 243
days).
Solar System Review
The rocky planets’ years
are short (88 days to two
years).
Solar System Review
The gas giants are
farthest from the Sun.
The gas giants are larger
than the rocky planets.
Solar System Review
The gas giants have many
moons (17 to 63).
The gas giants’ days are
shorter (10 hours to 17
hours).
Solar System Review
The gas giants’ years are
long (12 years to 165
years).
From Smallest to Largest
Earth
Sun
From Smallest to Largest
Solar System
From Smallest to Largest
Milky Way Galaxy
From Smallest to Largest
Local Group
From Smallest to Largest
Virgo Supercluster
From Smallest to Largest
Universe
What is a light year?
The distance light travels
in one year.
It is 6,000,000,000,000
miles.
What is a light year?
Why do we use the light
year?
Because distances in
space are so large.
Didja ya know?
Space is mostly empty space.
The Solar System, Milky Way, all
the galaxies combined are very,
very, very ,very small compared to
the universe.
Can we travel to another
star?
No!
Can we travel to another
star?
Because distances in space are so
large.