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The Solar System

The Solar System. Melinda Morris. The Solar System is made up of;. The Sun Terrestrial Planets (composed of silicate rocks and/or metals) Gas Giants (Composed of Gases) Dwarf Planets Moons Comets Asteroids Satellites Gas and Dust. The Sun. Middle Sized Yellow-Star called Sol

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The Solar System

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  1. The Solar System Melinda Morris

  2. The Solar System is made up of; The Sun Terrestrial Planets (composed of silicate rocks and/or metals) Gas Giants (Composed of Gases) Dwarf Planets Moons Comets Asteroids Satellites Gas and Dust

  3. The Sun Middle Sized Yellow-Star called Sol Its Surface is called the Photosphere which is 10,000° Fahrenheit Its core is 27 million Fahrenheit Its Diameter is 870,000 miles wide (109 times wider than Earth) It Weighs 333,000 times more than Earth It is made up of 92% Hydrogen, 7% Helium and 1% other gases It rotates every 27 days

  4. Mercury • Is 26 million miles from the Sun and has no Moons • Has 88 Earth days in a planetary year (i.e. 88 days to revolve around the sun) • Has 59 Earth days in a planetary day (i.e. takes 59 days to rotate once) • Has a diameter of 12,104 km and weighs 3.3 x 1023 Kg • Its temperature range is 173°C - 427°C • Its gravity is 0.38 times that on Earth

  5. Venus • Is 67.2 million miles from the Sun and has no Moons • Has 225 Earth days in a planetary Year (i.e. 225 days to revolve around the sun) • Has 243 Earth days in a planetary day (i.e. takes 243 days to rotate once) • Has a diameter of 4,878 km and weighs 4.87 x 1024 Kg • Its temperature is 453°C • Its gravity is 0.9 times that on Earth

  6. Earth • Is 93 million miles from the Sun and has 1 Moon • Has 365 Earth days in a planetary Year (i.e. 365 days to revolve around the sun) • Has 1 Earth day in a planetary day (i.e. takes 24 hours to rotate once) • Has a diameter of 12,756 km and weighs 5.98 x 1024 Kg • Its temperature is ranged between13°C - 42°C • Its gravity is 9.8 newtons per kilogram

  7. Mars • Is 141.6 million miles from the Sun and has 2 Moons • Has 687 Earth days in a planetary Year (i.e. 365 days to revolve around the sun) • Has 1 Earth day in a planetary day (i.e. takes 24.6 hours to rotate once) • Has a diameter of 6,787 km and weighs 6.42 x 1023 Kg • Its temperature is ranged between -123°C - 42°C • Its gravity is 0.376 times that on Earth

  8. Jupiter • Is 483.6 million miles from the Sun and has 63 known Moons • Has 12 Earth days in a planetary Year (i.e. 12 days to revolve around the sun) • Has 0.41 Earth days in a planetary day (i.e. takes 9.86 hours to rotate once) • Has a diameter of 142,796 km and weighs 1.90 x 1027 Kg • Its temperature is -153°C • Its gravity is 2.525 times that on Earth • It has a Giant Red Spot 40,000kms wide which is a giant hurricane which rotates once every 6 days

  9. Saturn • Is 886.7 million miles from the Sun and has 31 known Moons • Has 29 Earth days in a planetary Year (i.e. 29 days to revolve around the sun) • Has 0.425 Earth days in a planetary day (i.e. takes 10.2 hours to rotate once) • Has a diameter of 120,660 km and weighs 5.69 x 1026 Kg • Its temperature is -185°C • Has 7 groups of rings, 4 main and 3 fainter groups • Its gravity is 1.064 times that on Earth

  10. Uranus • Is 1784 million miles from the Sun and has 15 Moons • Has 84 Earth days in a planetary Year (i.e. 84 days to revolve around the sun) • Has 0.75 Earth days in a planetary day (i.e. takes 17.4 hours to rotate once) • Has a diameter of 51,118 km and weighs 8.68 x 1025 Kg • Its temperature is -214°C • Its gravity is 0.9 times that on Earth • It has a faint ring system like Saturn • Is tilted at an angle of 90°C (virtually lays on its side)

  11. Neptune • Is 2794 million miles from the Sun and has 2 Moons • Has 165 Earth days in a planetary Year (i.e. 165 days to revolve around the sun) • Has 0.8 Earth days in a planetary day. (i.e. 19.1 hours to rotate once) • Has a diameter of 48,600 km and weighs 1.02 x 1026 Kg • Its temperature is -225°C • Its gravity is 1.135 times that on Earth • It has a faint ring system like Saturn

  12. Pluto • Is 3675 million miles from the Sun and has 1 large and 2 small Moons • Has 248 Earth days in a planetary Year (i.e. 248days to revolve around the sun) • Has 6.4 Earth days in a planetary day (i.e. 6.4 Earth days to rotate once) • Has a diameter of 2,274 km and weighs 1.29 x 1022 Kg • Its temperature is -236°C • Its gravity is 0.061 times that on Earth

  13. Dwarf Planets As defined by the International Astronomical Union (IAU) it must meet these 4 points; is in orbit around the Sun has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a nearly round shape has not cleared the neighbourhood around its orbit is not a satellite There are 5 main dwarf planets known; Pluto, Eris, Ceres, Charon and Dysnomia

  14. Model of The Solar System Using Plasticine and the Scale Model build each Planet and Sun to Scale Once made, as a class, we will go out to the oval and model the solar system using a trundle wheel to measure the distances between planets.

  15. Revision Questions 1. Which planet has a longer day than a year? 2. Which is the smallest planet (not including dwarf planets)? 3. Which is the hottest planet? 4. Which 2 planets have no moons? 5. Which is the heaviest planet? 6. Which is the planet with the largest diameter? 7. Which planets have rings? 8. Name the dwarf planets? 9. What is the blue/water planet? 10. What is the red/rusty planet?

  16. Revision Answers 1.Venus, it takes 243 days to rotate and 224.68 days to orbit around the sun. 2. Mercury 3. Venus, because it has a thick atmosphere. (normally the closer to the sun the hotter) 4. Venus and Mercury 5. Jupiter 6. Jupiter 7. Saturn, Neptune, and Uranus 8. Pluto, Eris, Ceres, Charon and Dysnomia 9. Earth 10. Mars

  17. References 1. Lofts G, Evergreen M, 2000, Science Quest 1, John Wiley & Sons Australia Ltd, Milton, QLD. 2. Kids Know It, 2009, Solar System, Kids Know It, retrieved 2 October 2011, <http://www.kidsastronomy.com/solar_system.htm>

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