4th Grade-Ch 18 Lesson 2 What are the inner planets
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Transcript of 4th Grade-Ch 18 Lesson 2 What are the inner planets
![Page 1: 4th Grade-Ch 18 Lesson 2 What are the inner planets](https://reader036.fdocuments.net/reader036/viewer/2022062312/55507d3db4c9052d158b53d3/html5/thumbnails/1.jpg)
Ch. 18 Lesson 2What are the inner
planets?
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The Inner Planets
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Mercury•Little bigger than Earth’s moon
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•covered w/ craters
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• No atmosphere- very hot during day & cold @ night
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• Visited by Mariner 10 space probe
• no moons
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Venus•Thick atmosphere of sulfuric acid clouds
•No moons
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Venus•About same size as Earth
•Brightest object in night sky
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Earth•only planet w/ life & liquid water
•protected by atmosphere
•1 moon
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Mars•“Red Planet”- iron oxide
•2 moons- Phobos & Deimos
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•2 moons- Phobos & Deimos
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Mars rovers1.Sojourner
2.Viking 1
3.Spirit & Opportunity
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•many volcanoes
Mars
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Name that inner
planet
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no moons
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only planet with life
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“Red Planet”
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about same size as Earth
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2 moons
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poisonous clouds
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no atmosphere
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brightest object in night sky
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similar to Earth’s moon
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visited by rovers
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covered with craters
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liquid water
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covered with iron oxide