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International Edition Winners - 2012: India, Target 3, Grade: 6

International Edition Winners - 2012: India, Target 3, Grade: 6


Himani Mehul Dave
Saturn
Target 3, Saturn
Himani Mehul Dave

Baroda High School, Alkapuri
6th Grade
Akota, Vadodara




"The solar system consists of the sun, eight planets, about 100 known satellites, like the moon, and numerous asteroids, meteors and comets. In the eight planets, Saturn is the most beautiful planet in the solar system.

Saturn is the sixth planet from the sun and the second largest planet in the solar system, after Jupiter. The beautiful planet is named after Jupiter's father in roman mythology. Its astronomical symbol represents the god's sickle. In outer planet's Saturn is second largest and is a gas giant as made up of gas. It's average radius is about nine times than of Earth, while only one-eighth the average density of Earth, with its larger volume Saturn is just over 95 times as massive as Earth.

Saturn's interior is probably composed of a core of iron, nickel and rock, surrounded by a deep layer of metallic hydrogen, an intermediate layer of liquid hydrogen and liquid helium and an outer gaseous layer. The planet color is a pale yellow due to ammonia crystals in it's upper atmosphere. Wind speeds on Saturn can reach 1,800 km/h (1,100 mph), faster than on Jupiter, but not as fast on those on Neptune.

Saturn has a prominent ring system that consists of nine continuous main rings and three discontinuous arcs composed mostly of ice particles with a smaller amount of rocky debris and dust. There are 62 known moons according to National Aeronautics and Space Administration (NASA). Fifty-three of them are officially named. Titan, Saturn's largest and the Solar System's second largest moon, is larger than the Mercury and is the only moon to retain a substantial atmosphere.

The rotation of the planet causes it to take the shape of an oblate spheroid; that is, it is flattened at the poles and bulges at the equator. Saturn is the only planet of the Solar System that is less dense than water about 30 percent less.

Trace amounts of ammonia, acetylene, propane and methane have been detected in Saturn's atmosphere. The upper clouds are composed of ammonia crystals, while the lower level clouds appear to consist of either ammonium hydrosulfide or water.

The average distance between Saturn and the Sun is over 1.4 billion kilometers. With an average orbital speed of 9.69 km/s, it takes Saturn 10,759 Earth days to finish one revolution around the Sun. The latest estimate of Saturn's rotation was reported in September 2007 is 10 hours, 32 min, 35 seconds.

Saturn's diameter is 1,20,536 km. It's aphelion is 1,513,325,783 km. It's perihelion is 1,358,572,956 km. It's orbital period is 10,759,22 days. Mass is 5.6846 multiplied by 10 to the power 26 kg. It's composition is - Hydrogen, Helium, Methane, Ammonia, Hydrogen Deuteride and Ethane. On Saturn, gases in icy form are ammonia, water and ammonium hydrosulfide.

The day Saturday is named after the planet Saturn, which is derived from the Roman god of agriculture, Saturn (the Greek god Cronus).

By all points above, Saturn is called the most beautiful planet in the Solar System and it is! "