The Solar System. Overview of Solar System. Solar system: a group of objects in space that move around a central star The SUN Planets: large objects that moves around a star travel in paths called orbits around the sun Counter-clockwise How many? 8 or 9?
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The Solar System
Planets divided into 2 groups
* Separated by asteroid belt
Bill Nye video clip
Two other ways to group planets:
-Rocky planets:Mercury, Venus, Earth, Mars, Pluto
*heavy, move slowly, no rings, few moons
-Gas planets:Jupiter, Saturn, Uranus, Neptune
*light, move quickly, rings, lots of moons
-Small:Mercury, Venus, Earth, Mars, Pluto
-Giant:Jupiter, Saturn, Uranus, Neptune
*Mnemonic Device Device