Here's a useful printable poster / chart showing how red and yellow make orange, red and blue make purple, and yellow and blue make green. Laminate it and keep it handy, and use it with our colour mixing worksheets.
Colour Mixing Chart
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Colour Mixing Worksheet 3
Kids will enjoying having a go at these colour "sums" on this bright and cheerful colour mixing worksheet! UK and US versions available below.
Colour Mixing Worksheet 2
Which two primary colours do you need to mix together to create the secondary colour shown? Grab a set of crayons and fill in the worksheet...
Colour Mixing Worksheet 1
Here's the first of our colour mixing worksheets, where we ask children to colour in the final splodge in each colour sum with the correct secondary colour.