Day 74: Light Bulb Lab

Thursday, 5 December 2013

2013-12-05 11.13.14

I love this lab! Kids learn to wire up series and parallel connections with no prior lecture. I ask them to predict the brightness of the light bulbs as they modify their circuit 7 different times. The bulb bases are painted pieces of leftover lumber with screw-in bulb holders hot-glued to them. We’ve pre-wired leads to make it easier to manage. I use variable-voltage DC power supplies (just outside the frame).

Light Bulbs Lab



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