How to Make Electric Play-Doh - 5:48 PM Want to introduce your
kids to electronics? Ditch the circuit boards and go with that
sticky staple of early childhood: Play-Doh. The off-the-shelf
variety isn’t conductive enough, but adding the right amount of
salt and cream of tartar to your homemade version lets you
create circuits, illuminate LEDs, and even make motors spin! 1//
Make the insulating dough Mix 1½ cups flour, ½ cup sugar, 3
Tbsp. vegetable oil, ½ cup distilled water, and food dye in a
medium-size bowl. Stir until doughy. Turn out onto a flour-
coated surface and knead. 2// Cook the conductive dough Mix 1½
cups flour, ¼ cup salt, 1 Tbsp. vegetable oil, 1 cup tap water,
food dye, and 3 Tbsp. cream of tartar in a pot over medium heat.
Stir constantly until the dough thickens. Lay out on a floured
surface to cool. (Keep small fingers away—it’ll be hot.) 3//
Complete the circuit Sandwich a piece of insulating dough
between two balls of conductive dough. Insert the terminals of a
DC power supply (one that ta