Guide

Voltageistheheightfromwhichwaterisdropped ,currentistheamountofrunningwater,abatteryisthepumpthatdrawswater,
theminiaturebulbandmotorwillbethewaterwheelsthatarepoweredbywater.
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“Voltage” is the force used to move the electricity and the “current” is
the amount of electricity that ows. We'll use owing water as an
analogy.
Let's learn more about it!
Think about it!
The miniature bulb and
propeller are connected in a
series
circuit.
The miniature bulb and
propeller are connected in a
parallel
circuit.
♦ When the miniature bulb and motor are connected to a single battery in a series circuit.
♦ A miniature bulb and motor powered by a single battery in a parallel circuit.
The two water wheels must run on the same current and
since the current grows weaker with each wheel it powers,
the bulb becomes dim and
the motor doesn't spin
properly.
Each wheel receives one battery's worth of electrical
current so the miniature bulb shines and the motor rotates
normally. The battery will run out quicker, as water has to
be pumped out twice
as fast to power the two
wheels.
Bulb lights up
but is dim.
Bulb lights up.
The battery
gets drained
faster.
The water
isn't powerful
enough to
turn it fully.
This wheel is
bigger so it's
even harder
to turn.
It must pump
a lot of water.
Propeller does
not rotate.
Propeller
rotates.