Solar system webquest


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Solar system webquest

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