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Level :3ASS3-4 School Year: 2009/2010 English Assessment N°01 3rd term Text: Our solar system consists of an average star we call the Sun, the planets Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto. It includes also the satellites of the planets; numerous comets, asteroids, and meteoroids. The moon is the satellite rotating around the Erath and the closest body to it. The Sun is the richest source of electromagnetic energy (mostly in the form of heat and light) in the solar system. The Sun’s nearest known stellar neighbor is a red dwarf star called Proxima Centauri, at a distance of 4.3 light years away. The whole solar system, together with the local stars visible on a clear night, orbits the centre of our home galaxy, a spiral disk of 200 billion stars we call the Milky Way. The Milky Way has two small galaxies orbiting it nearby, which are visible from the southern hemisphere of the Earth. The nearest large galaxy is the Andromeda Galaxy. It is a spiral galaxy like the Milky Way but is 4 times as massive and is 2 million light years away. Our galaxy, one of billions of galaxies known, is travelling through the intergalactic space. The planets, most of the satellites of the planets and the asteroids revolve around the Sun in the same direction, in nearly circular orbits in a counter- clockwise direction. Pluto is a special case in that its orbit is the most highly inclined (18degrees) of all the planets. Because of this, for part of its orbit, Pluto is closer to the Sun than is Neptune; the axis of rotation for most of the planets is nearly perpendicular. The exceptions are Uranus and Pluto, which are tipped on their sides. a- Page1/2 turn the page Siège : 115, Hai Galloul Alger Plage - 021 86.11.63/021 87.19.57- Fax 021 87.16.89 - Mail: [email protected] Questions Reading comprehension: Read the text, then classify the following elements into the table: I- The sun- The moon- Mars- The Milky Way- Uranus- Earth- The Andromeda- Proxima Centauri- Mercury. Galaxies Stars Planets Satellites II- Complete the following sentences using information from the text: 1- The Solar system consists of a star, planets,…… 2- The comets are part of……………………….. 3- The moon is the closest………………………. 4- Proxima Centauri is the……………………to the sun. 5- The Andromeda is the ………………………to the Milky Way. 6- The Milky Way is ………………………..smaller then the Andromeda. 7- There are ……………………….galaxies known. 8- Pluto is special planet because…………….. 9- The planets revolve around the sun …………………. III- Answer the following questions: 1- What is the source of energy in the solar system? 2- Are the two galaxies “the Milky Way” and the “Andromeda” Similar? 3- How far is the Andromeda from Earth? 4- What is the furthest planet from the sun? 5- Do some planets, other than the Earth, have Satellites? End Page2/2 Good Luck M/D Siège : 115, Hai Galloul Alger Plage - 021 86.11.63/021 87.19.57- Fax 021 87.16.89 - Mail: [email protected] Siège : 115, Hai Galloul Alger Plage - 021 86.11.63/021 87.19.57- Fax 021 87.16.89 - Mail: [email protected]