We recently reviewed the DIY Electro Dough kit from Technology Will Save Us and were so pleased with our birthday cake creation that we decided to make a little light up pumpkin.
What do you think?
The idea of a circuit is that electricity flows through components from positive to negative. You can see below that we had to place a plastic layer to separate the two legs of each LED, without the insulation there would be no need for the electricity to go through the LED, it could just make the circuit back to the battery. With the insulation in place the electricity has to go through the LED back to the battery to form the circuit, so completing the circuit and lighting up the LEDS.
Have you seen our other Halloween science ideas? Try making ooey gooey slime, pumpkin lava lamps, glow in the dark goo and lots more.
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