Teaching overview

Learning points

  • White light is made up of different colours of light.
  • We only see the colours that are reflected back to our eyes.
  • The tissues above our veins reflect more blue light than red light.

Curriculum keywords

  • Body systems
  • Human body
  • Light

Spark a discussion

  • What colours make up white light?
  • Why does blood look red?
  • What do the terms "reflect" and "absorb" mean?

Explore our resources

Complete your lesson with teaching resources on the circulatory system from Tigtag.

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Discover Reach Out CPD for free online professional development courses.

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