You should understand the words and concepts listed here:

• solar system
• planet
• moon
• asteroid
• comet
• meteoroid
• meteor
• meteor shower
• meteorite
• perihelion
• aphelion
• extrasolar planet
• angular momentum

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The URL for this page is http://www.atsweb.neu.edu/physics/m.vaughn/PHYU111_F07/vocabulary_4.html
posted 17 October 2007