# Christmas light web quest

## parallel circuit

a closed electrical circuit in which the current is divided into two or more paths and then returns via a common path to complete the circuit .

## series circuit

Where there is only one path from the source through all of the loads and back to the source.

## voltage

an electromotive force or potential difference expressed in volts.

## resistance

The force that appose the flow of electron current in a conductor.

## resistor

devices that resistor the flow of electricity the flow of electricity and protect the components in a circuit.

## Test 1

IV: parallel DV: Light

Hypothesis 1 : If the Christmas lights are arranged in a parallel circuit then when 1 bulb bursts (is removed) the other bulbs DON'T light up.

Observations 1 : the wire and the battery

## Test 2

IV: parallel DV: light

Hypothesis 2 : If the Christmas lights are arranged in a parallel circuit then when 1 bulb bursts ( is removed) the other bulbs STILL lit up.

Observations : wire and battery

## conclusion

a parallel circuit is the best series to use for Christmas lights because if one bulb bursts out they will still work.