Teaching overview

Learning points

  • A star’s colour is determined by its temperature.
  • Hotter stars appear blue, cooler stars appear red, and in-between stars – like our Sun – appear yellow.
  • The temperature of a star is affected by several things, including its age and mass – meaning how much gas it contains.

Curriculum keywords

  • Space
  • Stars
  • Physics
  • The Sun

Spark a discussion

  • Why do different stars appear to be different colours?
  • Why do you think it’s difficult to study stars up-close?
  • What questions do you have about stars?

Explore our resources

Complete your lesson with teaching resources on our solar system from Tigtag.

Go to Tigtag

Discover free online CPD for primary science from Reach Out CPD.

Go to ReachOut CPD