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7 Cards in this Set

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· The inner planets are: Mercury, Venus, Earth, and Mars. They are relatively small, composed mostly of rock, and have few or no moons.
· The outer planets include: Jupiter, Saturn, Uranus, Neptune, and Pluto. They are mostly huge, mostly gaseous, ringed, and have many moons (again, the exception is Pluto which is small, rocky, and has one moon).
What is the sun?
Sun: The Sun is an ordinary yellow star and it is the only star in our Solar System. Stars burn, and sunlight that gives life is the light of our burning star -- the Sun.
Our solar system consists of the sun, nine planets (and their moons), an asteroid belt, and many comets and meteors. The sun is the center of our solar system; the planets, over 61 moons, the asteroids, comets, meteoroids and other rocks and gas all orbit the Sun
The nine planets that orbit the sun are (in order from the sun): Mercury, Venus, Earth, Mars, Jupiter (the biggest planet in our Solar System), Saturn (with large, orbiting rings), Uranus, Neptune, and Pluto. A belt of asteroids (minor planets made of rock and metal) orbits between Mars and Jupiter.
· Asteroids (also called minor planets) are rocky or metallic objects, most of which orbit the Sun in the asteroid belt between Mars and Jupiter.
·Comets are small, icy bodies that orbit the sun. They have very long tails.
planets: Nine planets, including Earth, travel around the Sun. Along with moons, comets, and lumps of rock, they make up the Solar System.
stars: They are a mass of gas in space such as the Sun.
· Meteoroids are small bodies that travel through space. They are stony and/or metallic and are smaller than asteroids. Most are very tiny.
comet: a snowball of ice and dust that travels around the sun.
Earth: Is one of the nine planets that travel around the sun. We live on the planet Earth.
Moon: The moon circles the Earth once a month. Most planets have moons, which circle around them. There is no air or water in the moon.