The Solar System

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The Solar System

• Planets and their sizes

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The Planets

• Mercury, Venus, Earth, and Mars
• Inner planets nearest to the sun
• Terrestrial planets have solid, rocky crusts
• Jupiter, Saturn, Uranus, Neptune
• Outer planets farthest from sun
• Gas Giant Planets more gaseous less dense
• Largest Jupiter
• Smallest was Pluto, now Mercury
• Earth is the 5th largest

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Planet Inner or Outer? Size of Moons Terrestrial/Gas Giant
Mercury Inner 3,032 mi Zero Terrestrial scalding hot
Venus Inner 7,521 mi Zero Terrestrial scalding hot
Earth Inner 3rd planet from the sun - about 93 million miles away 7,926 mi One Terrestrial has liquid water at the surface and can support varieties of life
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Planet Inner or Outer? Size of Moons Terrestrial/ Gas Giant
Mars Inner 4,218 mi Two Terrestrial cold, barren desert
Jupiter Outer Largest - 88,694 mi 62 Gas Giant
Saturn Outer 74,586 mi 33 Gas Giant
Uranus Outer 31,784 mi 27 Gas Giant
Neptune Outer 30,832 mi 13 Gas Giant
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Asteroids, Comets, Meteoroids

• Asteroids small, irregularly shaped, planetlike
  objects mainly found between Mars and Jupiter in
  asteroid belt a few follow paths that cross the
  Earths orbit
• Comets made of icy dust particles and frozen
  gases look like bright balls with long, feathery
  tails
• Meteoroids pieces of space debris

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Water, Land, and Air

• Oceans, lakes, rivers, and other bodies of water
  make up the Hydrosphere
• About 70 of our earth is water

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Water, Land, and Air

• Lithosphere - Land makes up the part of this
  earth
• - includes the ocean basins (land beneath the
  oceans)

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Water, Land, and Air

• Atmosphere The air we breathe
• - 6,000 miles above earths surface

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Water, Land, and Air

• Biosphere part of earth that supports life

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Landforms

• 7 continents
• Continent Quiz