Q12 of 50 Page 17

Give important features of Moon. 

  • The moon is a natural satellite of the earth.
  • It revolves round the earth on a definite regular path.
  • The moon is about one-fourth the size of the earth and its weight is about eighth that of the earth.
  • Its surface is covered with hard and loose dirt, craters and mountains.
  • On the moon, days are extremely hot and nights are very cold.
  • The moon has no light of its own.
  • The silvery moon light is actually the light of the sun which is reflected by the moon's surface.

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    10 Two constellations are seen in the sky having seven prominent stars in each, Name the one which appears during winter. Draw its diagram showing the position of stars.  11 Give an account of phases of moon.  13 Write two distinguishing features of a constellation. 14 Why do stars appear to be permanent to us even though these are born, grow and then die?