Christmas Light Webquest

Testable question: How does the type of circuit affect the strand of Christmas light with a burned out bulb?

IV: type of circuit       DV: Christmas lights with a burned out bulb

Hypothesis 1: If the Christmas lights are arranged in a parallel circuit then when 1 bulb bursts or is removed the other bulbs will not light up.

All the lights lit up and were really bright.

When the light was removed the lights still lit up.

Hypothesis 2: If the Christmas lights are arranged in a series circuit then when 1 bulb bursts or is removed then the bulbs will not light up.

All lights lit up and are not as bright as the parallel circuit.

When the light was removed none of the lights lit up.

A parallel circuit is the best series t use for Christmas lights because even if a bulb is burned out the other bulbs will still light up.

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