Solar System: The Outer Planets

Scientists decided that Pluto is too small to be considered a planet. Instead, it should be

True or False? Jupiter and Saturn give off more heat than they get from the sun.

The 4 outer planets are

The largest planet in the solar system is

The deep blue color of Neptune is caused by this gas in its atmosphere.

Because of Jupiter's atmosphere, the pressure is so high that the core of Jupiter is very

Space missions have shown that Jupiter and Neptune have very thin, faint

What is the "Great Red Spot?"

True or False? You can see Uranus from Earth without using a telescope.

The "Great Red Spot" is so huge that it is about 3 times the diameter of this planet.

Jupiter and the sun are alike because they're mostly made up of these 2 gases:

The color of Uranus is this color.

To revolve around the sun, it takes Saturn about this many Earth years:

Saturn and Earth are not very similar. Instead, Saturn is similar to this planet:

The rings of Saturn are made of trillions of particles of these two types:

Why are the outer planets called "gas giants?"

True or False? Uranus does not reflect much sunlight because it is so far from the sun.

The length of a day on Jupiter is about

A unique fact about Uranus is that it is actually

At one point, Neptune had a Great Dark Spot, which has since disappeared. This storm was