THE OUTER PLANETS

JUPITER

• Jupiter is the largest and most massive planet
• Jupiter has a thick atmosphere made up mainly of hydrogen and helium
• A especially exciting feature of Jupiter's atmosphere is the Great Red Spot, its a storm that is larger than Earth
• The pressure of Jupiter's core is 30 million times greater than the pressure at Earth's surface
• Jupiter has 4 moons

SATURN

• Saturn is the second largest planet in the solar system
• Saturn like other planets has a thick atmosphere made up of mainly hydrogen and helium
• Saturn's largest moon Titan is bigger than the planet Mercury

URANUS

• Uranus is much smaller than Saturn and Jupiter
• Uranus was discovered in 1781
• Uranus has 25 moons

NEPTUNE

• Neptune and Uranus look like twins because they are similar in size and color
• Scientists think that Neptune is slowly shrinking
• Like the Great Red Spot on Jupiter,Neptune has something called the Great Dark Spot
• Neptune has 13 moons

PLUTO

• Unlike other outer planets has a solid surface and is much denser than the other outer planets
• Pluto is smaller than Earth's moon
• Pluto's moon is more than one half the size of Pluto itself