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The Solar System

The Solar System. Where we live!. Mercury. Mercury is the planet closest to the sun. Mercury’s surface looks like the moon. It is very cratered. 3.8 billion years ago Mercury has no atmosphere to speak of No moons. Mercury. Mercury is the fastest planet – 30 mps

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The Solar System

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  1. The Solar System Where we live!

  2. Mercury Mercury is the planet closest to the sun. Mercury’s surface looks like the moon. It is very cratered. 3.8 billion years ago Mercury has no atmosphere to speak of No moons

  3. Mercury Mercury is the fastest planet – 30 mps Mercury’s revolution is 88 days, rotation is 59 One day lasts 176 Earth days Gravity is 1/3 of E Temps range from 840 to -275

  4. Mercury Mercury is 3032 miles at the equator Mercury is hard to see because it is close to Sun. Seen in phases Named after Roman god of commerce, travel, and thievery

  5. Mercury Dust covers the surface of the planet Mariner 10 came close in 1974-1975.

  6. Venus • 4.6 billion years old • 2nd planet from the sun, 67 million miles from the sun • Rotation- 243 E days • Revolution- 225 E days • 900 to – 225 degrees! • Mass- .815 of Earth

  7. Venus Earth’s twin due to size, density, and gravity. Temperature 900F due to runaway greenhouse effect. 97% Carbon Dioxide- atmospheric Pressure is 90 times 21+ spacecraft have visited

  8. Venus Volcanoes, rocky, craters, basins, highlands Mount Maxwell – 17 times higher than Everest Oceans once- boiled away Photojournal: http://photojournal.jpl.nasa.gov/targetFamily/Venus

  9. Mars

  10. Mars • The Red Planet – reminded ancients of blood and war. • Names after the Roman god of war • Has 2 moons- Phobos and Deimos (fear and terror) • Avg 142 million miles from the sun

  11. Mars • The soil is rusted because it has a high iron content • The large volcano is Olympus Mons (over 3 Mount Everests!) • Ice caps at both poles • Once believed to have water • Scientists thought “canali” meant canals- canals= life

  12. Mars • Temperatures range from super cold to barley above freezing • A Martian day is almost the same as Earth’s but a year is twice as long (687 days) • Mars has seasons like Earth because its axis is tilted about 25 degrees

  13. Asteroids Asteroids are bit and chunks of solid material left over form the formation of our solar system. Most are in orbit between Mars and Jupiter- asteroid belt (belt asteroids) Some have been captured- like Mars’ moons Some cross Earth’s orbit- near Earth asteroids

  14. Solar system picture: http://www.aerospaceguide.net/solar_system/solar_system.jpgVeus- http://blogs.sundaymercury.net/weirdscience/assets_c/2009/08/venus1-thumb-450x504.jpghttp://rocksfromspace.open.ac.uk/images/venus.jpg

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