Solar system webquest

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  • 1. Solar System Webquest: The Planets By: Diana Bok Science 8B Mr. Kowaliuk
  • 2. General Information: Keywords to know.
    • Revolve : The circular action of a smaller object around a larger object.
    • Rotate : The spinning action of an object on its axis.
    • Orbit : A specific path followed by a planet, satellite, etc.
  • 3. General Information: About the solar system
    • There are 8 planets found in the solar system.
    • Mercury, Venus, Earth, and Mars are the Inner Planets
    • Jupiter, Saturn, Uranus, and Neptune are the Outer Planets.
    • Pluto, Ceres, Eris, Haumea, and Makemake are the Dwarf Planets.
  • 4. General Information: About Inner and Outer Planets
    • Inner Planets:
    • solid spheres of rock
    • Closest to the Sun
    • Have more craters, because of the asteroid and the meteorites
    • Outer Planets:
    • gaseous spheres with rings
    • Far from the Sun
    • Bigger in size than the Inner Planets
  • 5. General Information: More about Planets
    • There are more craters found in the inner planets, because they are closer to the asteroid belt.
    • 3 requirements to become a “planet”:
        • Must be in orbit around the Sun
        • Have enough mass so that it has become round in shape due to its own gravity
        • Have cleared out its orbital path around the Sun
  • 6. General Information: Dwarf Planet
    • What?
      • a new class of astronomical objects
    • When?
      • created in 2006 by the International Astronomical Union
    • Why?
      • Failed the 3 requirements of Planets
      • Officially declared that they are not planets
    • Pluto, Ceres, and Eris.
  • 7. The Inner Planets: Mercury
    • Atmosphere:
      • The distance from the Sun is very close, so there is no substantial atmosphere.
    • 2 Elements found in the atmosphere:
      • Sodium
      • Helium
    • 3 processes that shaped Mercury:
      • impact cratering = crater formation
      • Volcanism = lava flooded the surface
      • Tectonic activity = the planet's crust moved in order to adjust to the planetary cooling and contracting
  • 8. The Inner Planets: Venus
    • “ Evening Star”:
      • The brightest planet that can be viewed from Earth
    • 2 Elements:
      • Carbon Dioxide
      • Sulfuric Acid
    • Retrograde Rotation:
      • Rotates clockwise slowly, which is different from the other planets
      • “ Retrograde”: having a direction which is opposite that of similar bodies.
  • 9. The Inner Planets: Venus
    • Day on Venus > Year on Venus:
      • Rotation of Venus is opposite.
    • Sun’s direction in Venus:
      • Venus rotates opposite from other planets, so the sun will rise in West and set in East
    • Why the hottest:
      • First of the solar system, meaning the closest to the Sun.
      • Can melt lead during daytime.
  • 10. The Inner Planets: Earth
    • Atmosphere:
      • 21% oxygen,78% nitrogen,9% argon.
      • other 0.1%=water vapor, carbon dioxide, neon, methane, krypton, helium, xenon, hydrogen, nitrous oxide, carbon monoxide, nitrogen dioxide, sulfur dioxide, and ozone
    • Atmosphere protects us from:
      • Solar radiation
      • Meteors
  • 11. The Inner Planets: Earth
    • Rotational tilt:
      • Axis titled 23.5 degrees
    • Magnetic Field:
      • Earth has a core of molten iron-nickel.
      • The rapid spin of the Earth along with the liquid, hot metallic core causes a magnetic field
    • Satellite of the Earth = Moon.
  • 12. The Inner Planets: Mars
    • Evidence of life:
      • Scientists studied meteorites from Mars and found bacteria and other signs that life may have once existed on Mars.
    • Atmosphere:
      • 95% Carbon Dioxide
    • Reddish-orange appearance:
      • presence of iron in various rocks and soils
  • 13. The Inner Planets: Mars
    • Olympus Mons:
      • The tallest mountain in the solar system
      • Over 26km above its base.
    • Satellites of Mars:
      • Phobos & Deimos
      • Asteroids captured by Mar’s weak gravitational field
  • 14. The Outer Planets: Jupiter
    • Shape of the planet:
      • rapid rotation
      • flatten at the poles
      • bulge at the equator
    • Atmosphere:
      • Hydrogen, Helium, Sulfur, and Nitrogen
    • Giant Red Spot:
      • hurricane-like storm that has been seen in Jupiter's southern hemisphere
  • 15. The Outer Planets: Jupiter
    • Satellites:
      • 50 named moons
      • 13 discovered but not yet named
    • Interesting fact about Io:
      • Volcanically active, or alive
      • One of Jupiter’s satellites
  • 16. The Outer Planets: Saturn
    • Atmosphere:
      • Hydrogen & Helium
    • Saturn’s rings:
      • Might have caused by the collision and particles from breaking satellites.
      • Water, ice, dust, particles, satellites in the rings
    • Density of the Saturn is very low, so Saturn can float in water.
    • Seasons last 7 Earth years in Saturn.
  • 17. The Outer Planets: Uranus
    • Rotation:
      • Tilted 98 degrees
      • Appears as if it’s rotating on its side
    • Atmosphere:
      • Helium, Hydrogen, Methane
    • Satellites:
      • 27 known satellites, both in and out of its rings.
  • 18. The Outer Planets: Neptune
    • Atmosphere:
      • Ammonia, Helium, Methane
    • Satellites:
      • 13 known satellites, 4 in the rings.
    • Triton:
      • Neptune’s biggest satellite
      • Formed by rock and ice
      • Theory: became the satellite by Neptune’s gravitational pull
  • 19. The Dwarf Planets: Pluto
    • Rotation:
      • Titled 122.5 degrees, rotates on its head
    • Using spectroscope:
      • Found Pluto has Methane frost
      • Has atmosphere of Nitrogen & Methane
    • Charon:
      • More blue in color than Pluto
      • Shares the same atmosphere
      • Detected water frost on Charon
      • ½ size of Pluto and close to the planet.
    • Pluto’s 3 moons:
      • Charon, Nix, and Hydra
  • 20. The Dwarf Planets: Ceres
    • Revolution:
      • About 4.6 Earth year to make one revolution
    • “ Asteroids”
      • Other asteroids were also orbiting the Sun with Ceres, so Sir William Herschel labeled Ceres as an asteroid
    • Surface:
      • Contains water ice, carbonates, and clays
  • 21. The Dwarf Planets: Eris
    • Original name:
      • Xena. Named from the popular TV show’s warrior princess
    • Revolution
      • Takes 557 Earth years to orbit around the Sun
    • Dysnomia-Name of Eris’s Moon
    • Not a planet:
      • does not clear out its orbit
      • Does not have all 3 requirements as a planet
  • 22. Credits to:
    • http://starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level2/planets.html
    • Includes all the information needed for the power point.