# Christmas light Webquest

### By: Hartman George

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

Iv: type of circuit

DV: number of light bulbs

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

I noticed that the electrons moved very quickly in the parallel circuit.

I noticed that when you remove a bulb the other bulbs still light up.

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

IV: Series Circuit

DV: number of light bulbs

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

I noticed that the electrons moved very slow.
I noticed the when you remove a bulb in the series circuit the other bulbs will not light up.
A parallel circuit is the best series to use for Christmas lights because if one light bulb bursts the electricity can take another path to reach the other bulbs.