the outer planets
what are Saturn's rings made of?
chunks of ice and rock
how many moons does Jupiter have?
dozens
what is Jupiter's core made of?
hydrogen and helium
what are Uranus's 5 largest moons like?
icy cratered surfaces
is Pluto larger than Earth's moon?
no
how often does Pluto revolve around the sun?
once every 248 Earth years
how many moons does Saturn have?
only a few
what are the rings that surround the gas giants made of?
small particles of ice and rock
the first four outer planets do not have solid what?
surfaces
what are the 4 planets known as gas giants?
Jupiter, Saturn, Uranus, Neptune
what is the order of the outer planets?
Jupiter, Saturn, Uranus, Neptune, Pluto
what is the great red spot on Jupiter?
a storm that is larger than Earth
why does Uranus look blue-green?
it has methane in is atmosphere
how is Uranus's rotation different than most planets?
it rotates from top to bottom
what is the composition of the gas planets?
they are mainly hydrogen and helium
how was the great dark spot like the great red spot?
they were both storms
what is Saturn's largest moon?
titan
what is Neptune's largest moon?
triton
Io is covered with what?
volcanos
what spacecraft sent images of Uranus back to Earth?
voyager 2
is Jupiter the largest planet?
yes
what are Jupiter's largest moons?
Io, europa, callisto, ganymede
how much larger is Uranus than Earth?
4 times
