Space]

• Days and nights

  Periods of time determined by the movement of Earth around the Sun, and the movement of the Moon around Earth
• Earth's axis of rotation

  • Imaginary line through the centre of the Earth between the South and North poles which the Earth rotates around
  • Tilted compared to the angle the Earth orbits the Sun
• Days and nights

  1. Earth rotates on its axis

  2. Each rotation takes 24 hours

  3. Side facing Sun is lit, experiencing day

  4. Opposite side facing away from Sun experiences night
• Year


  Time it takes for a planet to orbit once around the Sun
• Seasons


  Caused by the angle of the Earth's tilt as it moves through its orbit around the Sun
• When Earth's axis is tilted towards the Sun


  That hemisphere experiences summer
• When Earth's axis is tilted away from the Sun


  That hemisphere experiences winter
• When it is summer in the northern hemisphere


  It is winter in the southern hemisphere
• When it is winter in the northern hemisphere


  It is summer in the southern hemisphere
• Month


  Measured by the time taken for the Moon to orbit Earth once
• Calendar months are between 28 and 31 days in length
• The time for the Moon to go through a complete cycle (from a full Moon to the next full Moon) is approximately 29.5 days