Our Sun

• 330,000X greater mass than Earth.

• If the Sun were the size of a soccer ball, the Earth would be the size of a BB.

• It’s HOT! And it’s HUGE!

The Terrestrial Planets(Made mostly of rock and metal)

• Mercury

• Venus

• Earth

• Mars

Mercury

• Closest planet to the Sun.

• Orbits the Sun in only 88 days!

Venus

• The brightest object in the sky next to the Sun and Moon.

• Orbits the Sun in 225 days.

Earth

• Our home. • The densest planet.• Orbits the Sun in 365

days.• Has a large supply of

unfrozen water.

Earth’s Moon

• The only natural satellite of Earth.

• Second brightest object in the sky, after the Sun.

• The Moon’s gravity is the main cause of our tides.

Mars

• Orbits the Sun in 687 days.

• Sometimes referred to as the “Red Planet”.

• Has the largest mountain in the solar system - 78,000 feet.

Asteroid Belt

• Most of them are located in a “belt” between Mars and Jupiter.

• The total mass of all known asteroids is less than that of the Moon.

Gas Giant Planets

• Jupiter

• Saturn

• Uranus

• Neptune

Jupiter

• Largest planet in our solar system.

• More than twice as big as all of the other planets combined.

• Takes 4,333 days to orbit the Sun.

• Made of 90% hydrogen and 10% helium.

Saturn

• Takes 10,760 days to orbit the Sun.

• Sixth planet from the Sun.

• 2nd largest planet.• Least dense of the

planets. • It’s made of gases -

hydrogen and helium.

Uranus

• Takes 30,685 days to orbit the Sun.

• Spins sideways.• Made of rock, ice,

hydrogen, and helium.

Neptune

• Takes 60,190 days to orbit the Sun.

• 4th largest planet.• Made of ice, rock,

hydrogen, and helium.

Pluto (Dwarf Planet)

• Smaller than 7 of the solar system’s moons.

• Sometimes crosses the orbit of Neptune, making Neptune the most distant planet from the Sun for a few years.

• Takes 90,550 days to orbit the Sun.

Relative Sizes of Sun and Planets

How to remember the planets• My - Mercury• Very - Venus• Educated - Earth• Mother - Mars• Just - Jupiter• Served -Saturn• Us - Uranus• Nine - Neptune• Pizzas - Pluto