Solar System About 4‚700 million years ago‚ the Solar System was just a spinning disc of dust and gas. The dust began to collect together and our Sun formed at the centre. Around Sun‚ lumps of rock joined up to form smaller bodies and‚ like the Sun‚ they heated up. But because they were smaller they soon cooled down and became planets. Sun accounts for 99.85 per cent of mass of the solar system. About 1.3 billion earths would fit inside the sun. The solar system consists of the Sun; the nine planets
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stages of transportation systems research are suggested below. Stage 1.Identification of objectives and functioning of the subject of research‚ defining the criterion of system’s efficiency. Stage 2.Defining the borders of the system. Stage 3.Identification of the structure of environment. Stage 4.Research of the structure of transportation system; identification of its elements. Stage 5.Investigation of the characteristic interrelations between the elements of the system; design of the mathematic
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The Solar System My project is about the Solar System. The Solar System is made up of all the planets that orbits the Sun. The Solar System consists of moon‚ comets‚ asteroids‚ minor planets‚ dust and gas. Everything in the Solar System orbits or revolves around the Sun. The Sun contains around 98% of all the material in the Solar System. The larger an object is the more gravity it has. The Sun is the star at the center of the Solar System. After the sun is Mercury‚ the innermost planet in the
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Nehal Fenster Subject: The Solar System Grade Level: Kindergarten Time Allotted: 45 minutes Objective: Students will be able to identify the objects in our Solar System. Students will be able to identify the characteristics of each planet in the Solar System. Students will be able to know why Earth is the only planet that has life. Students will learn how to help protecting Planet Earth. Standards: ISTE Standards Engage students in exploring real-world issues and solving
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Advantages of and Problems with Solar Energy by Ethan Goffman I’d put my money on the sun and solar energy. What a source of power! I hope we don’t have to wait until oil and coal run out before we tackle that. – Thomas Alva Edison‚ 1931 The oil embargo of the 1970s prompted a national surge of interest in solar energy. A solar water heater was installed in the White House‚ and photovoltaic panels first came into play‚ notably in California. While previously solar power as a direct source of electricity
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1. Our solar system is made up of the sun and everything that travels around it. This includes eight planets and their natural satellites such as Earth’s moon; dwarf planets such as Pluto and Ceres; asteroids; comets and meteoroids 2. The sun is the center of our solar system. It contains almost all of the mass in our solar system and exerts a tremendous gravitational pull on planets and other bodies. 3. Our solar system formed about 4.6 billion years ago. 4. The four planets closest to the Sun
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SOLAR SYSTEM PLANETS MERCURY • The closest planet to the sun‚ Mercury is only a bit larger than Earth’s moon. Its day side is scorched by the sun and can reach 840 degrees Fahrenheit (450 Celsius)‚ but on the night side‚ temperatures drop to hundreds of degrees below freezing. VENUS • The second planet from the sun‚ Venus is terribly hot‚ even hotter than Mercury. The atmosphere is toxic. The pressure at the surface would crush and kill you. Scientists describe Venus’ situation as a runaway greenhouse
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respiratory problems among the general public. Water is the second most important commodity to sustain life. But this too is not available in pure time. There are several reasons for this. Untreated industrial wastes discharge is polluting our water system. Similarly‚ agricultural pesticides and insecticides are polluting our underground water. Impure water leads to an increase in gastrointestinal diseases. Another factor is of waste matter from daily consumption which we throw carelessly on streets
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A young Venetian‚ Bassanio‚ needs a loan of three thousand ducats so that he can woo Portia‚ a wealthy Venetian heiress. He approaches his friend Antonio‚ a merchant. Antonio is short of money because all his wealth is invested in his fleet‚ which is currently at sea. He goes to a Jewish money lender‚ Shylock‚ who hates Antonio because of Antonio’s anti-semitic behaviour towards him. Shylock nevertheless agrees to make the short-term loan‚ but‚ in a moment of dark humour‚ he makes a condition - the
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Solar System For Households As the development of technology is flourishing‚ fossil fuels are unceasingly depleted for enormous generation of energy. With limited resources‚ alternative forms of renewable energy are emerging. Among them‚ solar power has been growing at a blistering pace in recent years. It sparks controversy among different parties. Some people applaud this method saying it is more environmentally friendly; while some others express resentment on the astronomical cost of building
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