Topic: the colour wheel

Today we learned about the colour wheel.  How do clothes makers decide which colours to use?  Which colours should be put together in a pattern?  Read about the colour wheel to find the answers.  You can find more information here.

We tried some clever optical illusions based on the colour wheel.  This one has no green dot, but we think we see one!  The illusion with the black and white picture of a building is here.