Calder studio

Calder studio
The blog for girl who let off STEAM!

Monday, December 14, 2015

LED Cuff Bracelets

Today the GLOS girls had the challenge of making a closed circuit. What they made was an LED cuff bracelet. On a piece of felt the girls used conductive thread to sew the snap to the positive side of the LED. Then they sewed the negative side of the LED to the negative side of the lithium battery in the battery holder. Then they sewed the positive side to the other snap. When they snapped their bracelet together VIOLA! it closed the circuit and the LED glowed! Then we embellished them and made them fabulous!! Ths was a difficult activity. What the girls found most challenging was the
knot tying and not  letting the thread slip out of the needle. Thank goodness for needle threaders! Mostly, the girls learned the system of a circuit. The girls loved their creation. Our directions came from here.