Chris

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

IV: type of circuit

DV: strand of lights with a burned out bulb

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

If no bulbs are burned, all of the bulbs are lit.

If one bulb is burned, two bulbs are lit.

If the Christmas lights are arranged in a series circuit then when 1 bulb bursts (is removed) the other bulbs won't light up.

If no bulbs are burned out all bulbs are lit.

If one bulb is burned no bulbs are lit.

My hypothesis were correct, that a parallel circuit is best if a circuit has a burned bulb.

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