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The solar system

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    The solar system The solar system Presentation Transcript

    • The Solar System
      • The Solar System is full of:
      • Planets
      • Sun
      • Moons
      • Minor planets
      • Comets, asteroids and dust and gas
      • Everything in the Solar System orbits around the Sun
    •  
    • The Planets
      • The 8 planets are divided in two groups:
      • Inner Planets: Mercury, Venus, Earth and Mars
      • Outer Planets: Jupiter, Saturn, Uranus and Neptune
      • They are separated by the Asteroid Belt
    • Mercury
      • Is the planet closest to the
      • Sun , and it is the eighth
      • largest of the nine planets
      • Is a small, rocky planet. It is covered with craters.
      • One of Mercury's largest features is called the Caloris Basin . It is about 1300 km across
      • Mercury is so close to the Sun, and so small, that it has only a very small atmosphere.
      • It has no moons
    • Venus
      • Venus is a small, rocky
      • planet, very similar to Earth
      • Its surface is very hot (400ºC) due to the “Greenhouse Effect”
      • It has yellow clouds not made of water (like the ones here on Earth ). Instead, they are formed from a poison called sulfuric acid
    • Mars
      • Mars is a small , rocky planet
      • which is cold and lifeless.  
      • Mars has permanent ice caps
      • at both poles made up mostly of solid carbon dioxide.
      • Very strong winds and vast dust storms sometimes blow through the entire planet for months!  
      • Mars has two tiny moons which orbit very close to the surface. Their names are Phobos and Deimos .
    • Jupiter
      • Jupiter is the largest planet
      • which is made up of about
      • 90% hydrogen and 10%
      • helium
      • Jupiter has 16 known moons! There are four large " Galilean " moons (Io, Gaminedes, Calixto and Europe) and 12 small ones
      • Jupiter has rings like Saturn's , but much smaller
      • It has a “Great Red Spot”, a storm of swirling gas that has lasted for hundreds of years. Scientists are still unsure as to how such a storm could last for so long.
    • Saturn
      • Saturn is a giant gas planet
      • which is made up of about
      • 75% hydrogen and 25%
      • helium. It's most famous for its thousands of beautiful rings.
      • Saturn's rings are made up mostly of water ice. The origin of the rings of Saturn is currently unknown
      • Saturn's rings are extraordinarily thin. Even though they measure about 250,000 km across, they're no more than 1.5 kilometers thick.
      • Saturn has 18 known moons
    • Uranus
      • Uranus is a giant gas planet which
      • is made up of mostly rock and
      • various ices.
      • It has been visited by only one spacecraft, Voyager 2 on Jan 24 1986.
      • Uranus spins differently from most planets. It seems to be tilted "sideways" instead of right-side up. At the time of Voyager 2's passage, Uranus' south pole was pointed almost directly at the Sun .
      • Uranus has 15 known moons. Voyager 2 discovered 10 small moons in addition to the 5 large ones already known. It is likely that there are many more tiny moons within the rings.
    • Neptune
      • Neptune is a giant gas planet
      • which is most likely made up of
      • various " ices " and rock
      • Neptune's blue color is the result of a gas called "methane" in its atmosphere. Like the other gas planets , Neptune has rapid winds trapped in "bands" of latitude and large storms. Neptune's winds are the fastest in the solar system, reaching 2000 km /hour
      • Neptune has 8 known moons; 7 small ones and a large moon called " Triton ."