Planets, Mercury, Venus, Mars (131).pptx - Planets,...

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Planets, Mercury, Venus, MarsPlanets, Mercury, Venus, MarsScience 6Lesson 131Science 6Lesson 131
Planet – An object that orbits the sun, isspherical, butcannotshare its orbit with anotherobject of similar size, other than moonsTerrestrial PlanetsRocky, dense and Earthlikeplanets that are closest to thesunInner planets: Mercury, Venus,Earth, & MarsSmall, solid, & relatively closetogether; all except Earth arecovered with cratersGas GiantsMade mostly of gases, includingtheir surface; may have a solidcoreOuter planets: Jupiter, Saturn,Uranus, & NeptuneMassive compared to the innerplanets; far away from each other
Asteroid Belt –Area betweenMars and Jupiterfull of thousandsof asteroidsKuiper Belt – Anarea of small,icy objects,which includesPluto
Mercury- planetclosest to the sunSmallest planet; closest to thesunCannot hold an atmospheredue to its weak gravitationalfield & the solar windTemperature varies from 800°Fto -300°F59 day rotation (day)
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Solar System, Planet, lobate scarps

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