Puffy Paint Pictures!

Puffy Paint Pictures!

Can you paint using a microwave?

Can you really paint with a microwave?

Of course you can!

What you need:

  • ½ cup flour
  • 2 tsp baking powder
  • 2 tsp salt
  • Food colouring or poster paint
  • Water
  • Paintbrush or squeezy bottles
  • Thin cardboard

How to:

Ask an adult for help using the microwave.

1. Mix the flour, baking powder and salt together.

Puffy paint pictures - mix flour, salt and baking soda

2. Add enough water to make a paste.

Puffy paint pictures - add water to make a paster

3. Add a drop food colouring or poster paint to make the colours you want.

4. Use paintbrushes or squeezy bottles to paint on the cardboard. The thicker the paint, the puffier it will go!

Puffy paint pictures - paint away!

5. Put the cardboard in the microwave for 20 seconds. Check to see if the paint is dry and puffy. You may need to microwave the cardboard a few times to get the paint to dry. Don't let it burn!

Puffy paint pictures close up

Puffy paint pictures x2

You've got your very own puffy paint masterpiece!

What's happening?

When you heat up the paint, the baking soda reacts with the water to make carbon dioxide. Bubbles of carbon dioxide make the paint puffy. Can you see little dots in the paint? This is where bubbles of carbon dioxide have escaped.

Heating up the paint makes it dry out, so you can put your picture on the wall.

Thanks to Tinkerlab for the inspiration.

Curriculum information

  • Summary

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    Curriculum key wordsOther web links
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    Science Curriculum Links
    National CurriculumCurriculum for excellenceNorthern Ireland Curriculum
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