Mixing prime colours

Colour Exploration Stage 2: Mixing Prime Colours.

Dimples has known his colours for a while now, his lights and darks and all the colours in between!
I guess the next thing is to learn how colours mix together.

This is a Clean and Easy Lesson in Colour mixing for children of all ages. All you need are your Prime colour in food colouring, shaving foam or hair Mouse and some seal locked sandwich bags.

    RED                              YELLOW                                BLUE  

I stuck a small Coloured sticker on the plastic bags to help the learning process so that after the mixing was complete Dimples could see which bags started with what colours. 

What you will need

We did our Secondary Colours; Red/Yellow,  Yellow/Blue,  Blue/Red & I did an unmarked one so that Dimples could mix his own colour, knowing that he would choose all 3 prime colours.

First squirt your shaving cream in down the centre, leave small gaps on either side so your colours can get right in.  Do not over fill it, you want to be able to seal shut your bag easily without getting shaving cream into the sealing lock grooves. If this happens you could end up with an explosion of food colour and shaving cream all over your child's face, then it will be neither a clean nor an easy lesson in colour mixing.

Dimples makes green as the Red and Blue bag waits.

That's it! Seal it closed and one by one let your child mix the colours together. It was a success, Dimples was so enthusiastic as he mixed and mushed the bag around saying "I can see a bit of ..... Green! It made green mama"

Our mixed colours, showing what Prime colour was added to begin with.
Not only did Dimples watch and learn colour theory but he got a work out mixing the shaving cream. This is a great activity to strengthen the muscles needed for writing with all the pushing, scrunching, grabbing, pinching, squeezing and moulding. The shaving cream in the bag feels great as well, like a fluffy pillow.

The experimental mixing bag turned out into a light baby poo brown. I didn't get a photo but mid way through mixing it looks delicious! Not kidding, it looked like a rainbow paddle pop . So from a rainbow paddle pop to baby poo brown Dimples learnt that some colours mix well and some not so well.

The rainbow paddlepop colour with all 3 colours.

That turned baby pop brown!?

It was an interesting experiment and he loved it. We had a great discussion about colour, how there is only 3 prime colours and we went through the house pointing out colours as Dimples thought about what colours would be used to make it.

Happy Adventures


  1. Wow this is great! We did primary color mixing with paint but it was a lot messier!

  2. What fun! I love the idea of putting the coloured stickers on the outside to remember which colours were originally used.

  3. Great idea...we often sue the bags with paint and talk about colours but shaving foam and mixing the colours would work so well...thanks for sharing!

  4. What a great way to teach color mixing! So much squishy fun! Thanks for linking up to TGIF!


  5. What a great idea!! Thank you for sharing at Sharing Saturday!!

  6. A lovely idea - thanks for sharing!



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