Solar system hiral thaker final(Science)


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Solar system hiral thaker final(Science)

  1. 1. K.J. Somaiya Comprehensive college of Education, Training and Research Hiral Thaker Roll No. – 72 Sub – Science Class – VIII th. B.Ed. 2010 - 2011
  2. 2. Puzzle – Word game. A C J F H L Y B H C H P H K F N F K K O M G L J B U L E O M O A D A R S Y S T E O D L C N D S B J T N F L K J E G F D S S D I O R E T S A S T B N M C X Z S P Q
  3. 3. Puzzle – Word game. A C J F H L Y B H C H P H K F N F K K O M G L J B U L E O M O A D A R S Y S T E O D L C N D S B J T N F L K J E G F D S S D I O R E T S A S T B N M C X Z S P Q
  4. 4. Our Solar System
  5. 5. Our Solar System <ul><li>Our solar system is made up of: </li></ul><ul><li>Sun </li></ul><ul><li>Nine planets </li></ul><ul><li>Their moons </li></ul><ul><li>Asteroids </li></ul><ul><li>Comets </li></ul>
  6. 7. Sun <ul><li>The Sun is the center of the solar system. </li></ul><ul><li>The temperature at its surface is about 6000 degree celsius. </li></ul><ul><li>Its size is very big. </li></ul><ul><li>It can hold 13 lakhs earth like ours within itself. </li></ul><ul><li>All the other objects revolve around the sun due to gravitational force. </li></ul>
  7. 8. Sun Photos of sun taken at 4 different wavelengths of ultraviolet
  8. 9. Planets <ul><li>Mercury. </li></ul><ul><li>Venus. </li></ul><ul><li>Earth. </li></ul><ul><li>Mars. </li></ul><ul><li>Jupiter. </li></ul><ul><li>Saturn. </li></ul><ul><li>Uranus. </li></ul><ul><li>Neptune. </li></ul><ul><li>Pluto </li></ul>
  9. 10. Inner Planets <ul><li>The inner four rocky planets at the center of the solar system are: </li></ul><ul><li>Mercury. </li></ul><ul><li>Venus. </li></ul><ul><li>Earth. </li></ul><ul><li>Mars. </li></ul>
  10. 11. Mercury <ul><li>Planet nearest the sun. </li></ul><ul><li>Second smallest planet. </li></ul><ul><li>Covered with craters. </li></ul><ul><li>Has no moons or rings. </li></ul><ul><li>About size of Earth’s moon. </li></ul>
  11. 12. Mercury These recent images from the MESSENGER satellite (Jan 2008) show a surface similar to the Moon.
  12. 13. Venus <ul><li>Sister planet to Earth. </li></ul><ul><li>Has no moons or rings. </li></ul><ul><li>Hot, thick atmosphere. </li></ul><ul><li>Brightest object in sky besides sun and moon (called as morning star or evening star). </li></ul><ul><li>Covered with craters, volcanoes, and mountains. </li></ul>
  13. 14. Venus Pioneer spacecraft image taken in 1979. Reflected radio waves reveal the surface topology.
  14. 15. Earth <ul><li>Third planet from sun. </li></ul><ul><li>Only planet known to have life and liquid water. </li></ul><ul><li>Atmosphere composed of Nitrogen (78%), Oxygen (21%), and other gases (1%). </li></ul><ul><li>The axis around which earth rotates is slightly inclined. Because of this, earth has summer and winter season. </li></ul>
  15. 16. Earth Gulf of California Earth photograph from Apollo 16
  16. 17. Earth Earthrise – Apollo 8
  17. 18. Mars <ul><li>Fourth planet from sun. </li></ul><ul><li>Appears as bright reddish color in the night sky. </li></ul><ul><li>The soil is rich in iron, which makes it appear red. </li></ul><ul><li>Surface features volcanoes and huge dust storms. </li></ul><ul><li>Has 2 moons: Phobos and Deimos. </li></ul>
  18. 19. Mars
  19. 20. Outer Planets <ul><li>The outer planets </li></ul><ul><li>composed of gas are : </li></ul><ul><li>Jupiter. </li></ul><ul><li>Saturn. </li></ul><ul><li>Uranus. </li></ul><ul><li>Neptune. </li></ul>
  20. 21. Jupiter <ul><li>Largest planet in solar system. </li></ul><ul><li>Brightest planet in sky </li></ul><ul><li>63 moons, 5 visible from Earth. </li></ul><ul><li>Strong magnetic field. </li></ul><ul><li>Giant red spot. </li></ul><ul><li>Rings have 3 parts: Halo Ring, Main Ring, Gossamer Ring. </li></ul>
  21. 22. Jupiter Weather on Jupiter
  22. 23. Saturn <ul><li>6 th planet from sun. </li></ul><ul><li>Beautiful set of rings. </li></ul><ul><li>31 moons. </li></ul><ul><li>Largest moon, Titan. </li></ul><ul><li>Easily visible in the night sky </li></ul><ul><li>Voyager explored Saturn and its rings. </li></ul>
  23. 24. Saturn Saturn’s Atmosphere
  24. 25. Uranus <ul><li>7 th planet from sun. </li></ul><ul><li>Has a faint ring system. </li></ul><ul><li>27 known moons. </li></ul><ul><li>Covered with clouds. </li></ul><ul><li>Uranus sits on its side with the north and south poles sticking out the sides. </li></ul>
  25. 26. Uranus
  26. 27. Neptune <ul><li>8 th planet from sun. </li></ul><ul><li>Discovered through math. </li></ul><ul><li>7 known moons. </li></ul><ul><li>Triton largest moon. </li></ul><ul><li>Great Dark Spot thought to be a hole, similar to the hole in the ozone layer on Earth . </li></ul>
  27. 28. Neptune Internal Structures.
  28. 29. Outermost Planet <ul><li>Pluto, the outermost planet, is a small solid icy planet is smaller than the Earth's Moon. </li></ul>
  29. 30. Pluto <ul><li>9 th planet from sun (usually). </li></ul><ul><li>Never visited by spacecraft. </li></ul><ul><li>Orbits very slowly. </li></ul><ul><li>Moon, Charon, is very close to Pluto and about the same size. </li></ul>
  30. 31. Pluto HST image of Pluto
  31. 32. Asteroids <ul><li>Small bodies </li></ul><ul><li>Believed to be left over from the beginning of the solar system billions of years ago </li></ul><ul><li>100,000 asteroids lie in belt between Mars and Jupiter </li></ul><ul><li>Largest asteroids have been given names </li></ul>
  32. 33. Asteroids Based on known Earth-crossing asteroid orbits, it is estimated that 3 asteroids impact Earth every 1 million years!
  33. 34. Comets <ul><li>Small icy bodies. </li></ul><ul><li>Travel around the Sun. </li></ul><ul><li>Give off gas and dust as they pass by. </li></ul><ul><li>Consist of brilliant sphere called its “head” and a long “tail”. </li></ul><ul><li>As it goes near to the sun the tail gets longer. </li></ul>
  34. 35. Comets Halley’s Comet in 1986
  35. 36. EVALUATION ? <ul><li>Jupiter has moons. </li></ul><ul><li>What is Solar System? </li></ul><ul><li>How big is the Sun relative to earth? </li></ul><ul><li>Why is Mars called The Red planet? </li></ul><ul><li>Write the names of Indian Astronauts and collect their pictures </li></ul><ul><li> </li></ul>
  36. 37. Answer. <ul><li>63 moons </li></ul><ul><li>The sun, the nine planets, their moons, asteroids and comets forms a solar system. </li></ul><ul><li>The sun is so big that it can accommodate 13 lakh Earths in it. </li></ul><ul><li>Because its soil is rich in iron and it appears red. </li></ul>
  37. 38. Solar System Activities <ul><li>Order the Planets   </li></ul><ul><li>Fun with Planets </li></ul><ul><li>Constellations of the Northern Sky </li></ul><ul><li>Planets </li></ul><ul><li>Solar System   </li></ul>
  38. 39. <ul><li>THANK YOU! </li></ul>