Planets

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Planets

  1. 1.  How many planets are there?  7 8 9
  2. 2.  Which planet is closest to the sun? Earth Neptune Mercury
  3. 3.  Closest and smallest planet to the sun  The orbit period is 88 days  427 degrees during the day  Mercury is often visible with binoculars or even the unaided eye
  4. 4.  The orbit period is 248 days Venus is only slightly smaller than Earth  Brightest object in the sky apart from the sun and moon
  5. 5.  Only planet with living organisms  Earth has only one natural satellite which is the moon  71 Percent of the Earth's surface is covered with water
  6. 6.  Also known as the red planet  Mars has a very thin atmosphere composed mostly of the tiny amount of remaining carbon dioxide  When it is in the night time sky, Mars is easily visible with the unaided eye.
  7. 7.  Jupiter is about 90% hydrogen and 10% helium  Jupiter has a diameter of 142, 750km  Jupiter is the giant of the solar system
  8. 8.  Saturn is surrounded by rings which may be composed of ice  Saturn is 1426 million km away from the sun  Saturn take 29 ½ years to make one complete orbit of the sun
  9. 9.  Uranus has a total of 27 moons  Uranus takes 84 years to complete one orbit  Scientists do not exactly know what causes the rings or what they consist of
  10. 10.  Neptune is 150 million km away from the sun  Neptune has 13 moons  Neptune takes 165 years to orbit the sun

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