- 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.
- Body systems
- Human body
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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