She taught Room 221 scientists to create a series circuit using 2 batteries and 1 lightbulb. The students were impressed with the brightness of the lightbulb when it received energy from two batteries.
Why did the lightbulb become brighter with the series circuit, but not the parallel circuit?
What happens when you disconnect 1 wire in a series circuit?
What happens when you disconnect 1 wire in a parallel circuit?
What does a series circuit have to do with older sets of holiday lights?
What does a parallel circuit have to do with newer sets of holiday lights?