Space

• International Space Station (ISS)

  An example of an artificial satellite
• Moon


  An example of a natural satellite
• Comet


  Frozen dust particles that are orbiting the Sun
• Meteor


  Pieces of dust and rock travelling through the sky
• Planets in the solar system

  • Mercury
  • Venus
  • Earth
  • Mars
  • Jupiter
  • Saturn
  • Uranus
  • Neptune
• Day


  24 hours, the time it takes for the Earth to rotate completely on its axis
• Year


  365 ¼ days, the time it takes the Earth to orbit the Sun
• Seasons


  • Occur because of the tilt of the Earth on its axis and its position in orbiting the Sun
• Solar eclipse


  When the moon comes between the Sun and Earth
• Lunar eclipse


  When the Earth comes between the Sun and Moon
• Moon's orbit around the Earth

  27 days and 7 hours
• Phases of the Moon

  • new moon
  • full moon
  • waxing crescent
  • waning gibbous
  • first quarter
  • last quarter
  • waxing gibbous
  • waning crescent