Squishy Circuits

Many moons ago we made play dough - one with sugar and one with salt.. The Green or conductive clay which had salt in it and Isabelle and I made first.  Mac and I made Blue or Insulating play dough that had salt in in and would not let electricity pass through it. 

Now you are asking why?? - To learn about electricity... So here is how it works....

Adding salt to the dough helps electricity move through the material. With enough power, the electrical current can light LEDs and sound a buzzer! 

We blew out about 3 LED to start with until we got the hang of and I let the girls try different things till it worked, which believe it or not it did - It was awesome.  The girls played by themselves with different clay designs trying to make each one work. Some did and some didn't - and the ones that didn't we would look at and figure out why - they loved it...

If you are interested in doing this yourself here is the link to help explain  and projects.. teacher's guide

This is the website to Squishy Circuits
this is the link Anne Marie demonstration on the squishy circuits

If you try this at home I have a few suggestions  ....
1) Make the Insulating clay white, and when making it add the water very slowly, the other you can just add all the water at once.