Where playdough meets electricity!
Squishy circuits are a straight forward way to play with science, technology, engineering and art (and math if you let the kids measure out all the ingredients)! It's a whole lot of learning masked by a bunch of fun. Who knew us adults could be so tricky.
You can use store bought playdough to make these squishy circuits, but what's the fun in that when you probably have most of these ingredients lying around the house!
1/2 cup salt
1 cup plain flour
2 tbsp cream of tartar
1 cup water
1 tbs oil
food dye (keep adding until you reach the desired color)
Get out your saucepan and a spoon for mixing (I use a wooden one). Mix all the ingredients together over low heat until you have a pliable dough. If you're like me, your arm will get a bit sore toward the end but persevere, you're almost there.
That's it! Let your dough cool and then play. When playtime is over, store the dough in a well sealed plastic bag or container and it will last you months!
Okay, but how do we get started???
All you need are some LEDs and a battery pack (I like to use the low power lantern battery with crocodile leads. You can also make your own from LEGO and aluminium). If you're ready for some more experiments, you can add a piezo buzzer to the mix.
The circuits can be simple or complex. I put together these basic circuits to get you started. Have a play to see what happens with each of the different types of circuits. Now that you know the basics, make something fun!
There are lots of recipes out there for homemade insulating dough, but I prefer non-drying clay for making advanced squishy circuit masterpieces!