Wednesday, 17 October 2012

The Earth, The Moon and The Sun

Earth rotate on its axis from the west to the east. It takes 24 hours to make one complete rotation.

→ How long does the Earth take to move around the Sun?

√  The Earth also moves around the Sun at the same time. It takes one year to move around the Sun.

The Moon also rotate on its axis. It takes about 28 days to make a complete rotation. At the same time, the Moon moves around the Earth. It also takes about 28 days to move around the Earth.

  • In early morning and afternoon, the Sun rises on the horizon and makes long shadows.
  • At noon, the Sun is directly overhead and makes short shadows.
  • The rotation of the Earth on its axis causes the length and position of a shadow to change.

The Sun is the centre of our solar system. The Earth and the Moon move around the Sun at the same time.