Conductive and Insulating Dough for BBC micro:bit Projects

Did you know that you could make fun dough at home? Did you know that fun dough can be made both insulating and conductive! Perfect for building squishy circuits, enhancing projects you've already built, or making totally new and very awesome projects! And everything you'll need comes from pretty common household kitchen items. 

Conductive Dough

First, we'll take a look at making conductive dough. It involves some cooking, so you might want to get some help from an adult with this activity.

You will need:

  • 1 cup water
  • 1 1/2 cups flour
  • 1/4 cup salt
  • 9 tbsp lemon juice
  • 1 tbsp vegetable oil
  • Food colouring (optional)

1

Mix the water, salt, lemon juice, vegetable oil and one cup of your flour together in a medium-sized pot. Add the food colouring if you've got any. Make sure it's well mixed up!

2

Cook it over a medium heat and stir continuously. The mixture will start to bubble and clump together, so keep stirring until all you're left with is a single ball. This might get pretty tiring, so you'll probably want to get an adult to help you with this step.

3

Dust a clean surface with some flour and place the ball on top of it. Slowly knead the rest of the flour into the ball until it feels like the right consistency of fun dough.

4

And voila! You have your conductive dough.

Insulating Dough

Now we'll make some insulating dough! Making insulating dough is almost the same as making conductive dough but with a slightly different recipe and method. (It's easier.)

You will need:

  • 1/2 cup water
  • 1 1/2 cups flour
  • 1/2 cup sugar
  • 3 tbsp vegetable oil
  • Food colouring (optional)

1

Mix the sugar, 1 cup of the flour and vegetable oil in a pot or large bowl.

3

Knead the mixture into a single lump. This might take a little time and be tiring so get an adult to do the tough work for you!

2

Mix in a little bit of water. Around 1 tbsp and stir. Repeat this step until most of the water has been absorbed into the mixture.

4

Knead more water into the dough until it has a sticky texture, a bit like normal dough. When it reaches this point you want to knead the rest of the flour into the mixture until it feels like normal fun dough. So much kneading!

There you have it. Some insulating dough. Take a look at our projects and see which you can adapt using conductive or insulating dough.