Terrestrial Planets in Our Solar System
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Questions and Answers

Which planet is known for being the hottest in the solar system?

  • Mercury
  • Mars
  • Jupiter
  • Venus (correct)
  • Which of the following planets is NOT a gas giant?

  • Uranus
  • Saturn
  • Jupiter
  • Mars (correct)
  • What is unique about Uranus' axis?

  • It is tilted at a 45-degree angle
  • It is tilted on its side (correct)
  • It is tilted at a 23.5-degree angle
  • It is tilted at a 90-degree angle
  • What is the primary composition of the gas giants?

    <p>Hydrogen and helium</p> Signup and view all the answers

    Which dwarf planet has a highly eccentric orbit?

    <p>Eris</p> Signup and view all the answers

    What percentage of Earth's surface is covered in water?

    <p>71%</p> Signup and view all the answers

    Study Notes

    Planets of the Solar System

    Terrestrial Planets

    • Mercury:
      • Smallest planet in our solar system
      • Closest to the sun
      • Rocky composition
      • No atmosphere
    • Mars:
      • Known as the Red Planet
      • Rocky composition
      • Has polar ice caps
      • Potential for life
    • Earth:
      • Only known planet to support life
      • Rocky composition
      • 71% water
      • Atmosphere consists of 78% nitrogen, 21% oxygen
    • Venus:
      • Hottest planet in the solar system
      • Rocky composition
      • Thick atmosphere traps heat
      • Volcanic surface

    Gas Giants

    • Jupiter:
      • Largest planet in our solar system
      • Gas composition (mostly hydrogen and helium)
      • Stormy atmosphere (Great Red Spot)
      • Many moons ( Io, Europa, Ganymede, Callisto)
    • Saturn:
      • Second-largest planet in our solar system
      • Gas composition (mostly hydrogen and helium)
      • Ring system
      • Many moons (Titan, Enceladus)
    • Uranus:
      • Tilted axis (rotates on its side)
      • Gas composition (mostly hydrogen, helium, and methane)
      • Cold atmosphere
      • Few moons
    • Neptune:
      • Coldest planet in the solar system
      • Gas composition (mostly hydrogen, helium, and methane)
      • Strong winds
      • Few moons

    Ice Giants

    • Uranus:
      • See above
    • Neptune:
      • See above

    Dwarf Planets

    • Pluto:
      • Formerly considered the ninth planet
      • Rocky and icy composition
      • Small size
      • Kuiper Belt object
    • Eris:
      • Located in the Kuiper Belt
      • Rocky and icy composition
      • Similar size to Pluto
      • Highly eccentric orbit
    • Haumea:
      • Located in the Kuiper Belt
      • Rocky and icy composition
      • Irregular shape
      • Highly eccentric orbit

    Terrestrial Planets

    • Mercury is the smallest planet in our solar system.
    • Mercury is the closest planet to the sun.
    • Mercury has a rocky composition and no atmosphere.
    • Mars is known as the Red Planet due to its rocky composition.
    • Mars has polar ice caps and shows potential for life.
    • Earth is the only known planet to support life.
    • Earth's composition is rocky, with 71% of its surface being water.
    • Earth's atmosphere consists of 78% nitrogen and 21% oxygen.

    Gas Giants

    • Jupiter is the largest planet in our solar system.
    • Jupiter has a gas composition, primarily consisting of hydrogen and helium.
    • Jupiter's atmosphere is stormy, featuring the Great Red Spot.
    • Jupiter has many moons, including Io, Europa, Ganymede, and Callisto.
    • Saturn is the second-largest planet in our solar system.
    • Saturn has a gas composition, primarily consisting of hydrogen and helium.
    • Saturn features a prominent ring system.
    • Saturn has many moons, including Titan and Enceladus.
    • Uranus has a tilted axis, rotating on its side.
    • Uranus has a gas composition, primarily consisting of hydrogen, helium, and methane.
    • Uranus has a cold atmosphere and few moons.
    • Neptune is the coldest planet in our solar system.
    • Neptune has a gas composition, primarily consisting of hydrogen, helium, and methane.
    • Neptune's atmosphere is subject to strong winds, and it has few moons.

    Ice Giants

    • Uranus is an Ice Giant, characterized by its tilted axis and cold atmosphere.
    • Neptune is an Ice Giant, characterized by its cold atmosphere and strong winds.

    Dwarf Planets

    • Pluto is a dwarf planet, formerly considered the ninth planet in our solar system.
    • Pluto has a rocky and icy composition and is small in size.
    • Pluto is a Kuiper Belt object.
    • Eris is a dwarf planet, located in the Kuiper Belt.
    • Eris has a rocky and icy composition, similar in size to Pluto.
    • Eris has a highly eccentric orbit.
    • Haumea is a dwarf planet, located in the Kuiper Belt.
    • Haumea has a rocky and icy composition, and an irregular shape.
    • Haumea has a highly eccentric orbit.

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    Learn about the unique characteristics of Mercury, Mars, Earth, and Venus, including their composition, atmosphere, and potential for life.

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