Saturday, November 30, 2013

Mercury

- good essay. watch akward structures! Laolee Xiong Period 2 2/26/97 MERCURY                   atomic number 80 is the next satellite to the sun. Its average distance from the sun is approximately 58 integrity thousand million km and its diam is 4875 km, fashioning it the second sm each(prenominal)est planet in our solar system. Its muckle and mass atomic number 18 about 1/18 that of the earth and its average density is approximately qualified to that of the earth. quicksilvers magnetic field is unity-hundred times weaker than that of Earths. Mercury has the shortest revolution of any the planets in our solar system and revolves around the sun in about eighty-eight days. Radar observations of the planet show that its well out of rotation is 58.7 days, or two-thirds of its period of revolution. That means that Mercury has one and one-half days in its year.         Mercury doesnt have an atmosphere, erect it does have a thin layer of helium. The helium is sincerely solar wind that is trapped by Mercurys weak gravity. Scientists count that collisions with protoplanets early in the history of the solar system whitethorn have stripped away lighter materials, making Mercury a very dense planet with an iron cell nucleus extending outwards 4/5 of the way to the surface.
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        Mercury b bes a very similar resemblance to our moon because it has a outcome of craters. The craters, which cover seventy-five percent of Mercurys surface, were formed by long rocks that smashed into the planets s urface. The largest crater is called the Ca! loris Basin and it is 1400 km in diameter and is flooded with molten lava. Mercury also has many cliffs that are usually over 300 miles long and two miles high. The gentle of the planets surface is smooth and may have been formed by lava flowing out of cracks in the surface.         Temperatures on... If you want to get a full essay, order it on our website: BestEssayCheap.com

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