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Class6 Earth Rotation And Revolution
 

Class6 Earth Rotation And Revolution

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    Class6 Earth Rotation And Revolution Class6 Earth Rotation And Revolution Presentation Transcript

    • Presentation Made By:-Mudit Singh Vats Class - 6 th A, Roll No.-24 Motions of the Earth
    • Motions of the Earth
      • THE EARTH HAS TWO TYPES OF MOTION
      • ROTATION
      • REVOLUTION
      • ROTATION
      Earth rotates on its axis as it revolves around the Sun . REVOLUATION Motions of the Earth
    • Rotation of the Earth
      • The motion of the earth about its axis is known as rotation.
      • The direction of this movement varies with the viewer’s position.
      • From the North Pole the rotation appears to move in a counter-clockwise fashion.
      • Looking down at the South Pole the Earth’s rotation appears clockwise.
      Rotation of the Earth
            • The Earth rotates once in twenty-four hours.
      • The Earth’s rotation is responsible for the daily cycles of day and night.
      • At any one moment in time, one half of the Earth is in sunlight, while the other half is in darkness. When the earth rotates we get day and night.
      • The edge dividing the daylight from night is called the circle of illumination.
      Rotation of the Earth
      • Rotation dictates the length of the diurnal cycle (i.e., the day/night cycle)
      • The earth rotates on an axis that is tipped over at about 23.5 degrees.
      • Earth rotates at approximately 15 angular degrees per hour. So, the Earth's surface moves at the equator at a speed of about 467 m per second or slightly over 1675 km per hour.
      Rotation of the Earth
    • The earth revolves around the sun in an elliptical orbit. Revolution of the Earth
      • It takes 365 days and 6 hours to complete one revolution.
      • The distance between the earth and the sun changes due to revolution.
      • This change of distance also causes change in seasons.
      Revolution of the Earth
      • The earth revolves in an elliptical shape.
      • As the Earth revolves it gets closer and farther away from the sun.
      • The angle that the sun hits the Earth causes the seasons.
      Revolution of the Earth
    • Thanks