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