Christmas Lights Webquest

How does the type of circuit affect the strand of Christmas lights with a burned out bulb?

Independent Variables: Type of circuit, and number of light bulbs removed.

Dependent Variable: Number of lights that lit up.

If the Christmas lights are arranged in a parallel circuit then when 1 bulb bursts (is removed) the other bulbs will light up.

I noticed when you connected all of the wires to the bulbs and battery it brightly lit up.

I noticed when you remove a light bulb nothing happened.

If the Christmas lights are arranged in a series circuit then when 1 bulb is removed the other bulbs will not light up.

I noticed that the light bulbs were as bright as they were in the parallel circuit.

I noticed when the one light bulb was removed there was no more light being produced.

A parallel circuit is the best circuit to use for Christmas lights because even if one light bulb goes out all the rest still work.

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