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• Power Source: The battery gives power to the LED.

• Resistor: The resistor protects the LED from getting too much power.

• Jumper Wires: These help the power move from the battery to the
LED, making it light up.

Observation

After putting all the parts on the magnetic board and connecting them
with the USB cable and jumper wires, the LED lights up brightly. Students

will observe that if the jumper wires are not connected properly, the LED

will not glow. They will also notice that the LED light stays on as long as
the battery is connected, showing how power flows through each part to
make the light work.

Application

Night lights: These small lights use LEDs
to gently light up a room or hallway at
night. Just like in the activity.

Portable Fan Model

A portable fan model is a simple, small fan that you can carry around to
stay cool wherever you go.

It's a great way to understand how fans work and how electricity can

power machines.

Components of Portable Fan Model

Following are the components of portable fan model:

• Motor: A motor is a small machine that makes things move. When you
connect a battery, the motor spins, which can

make things like wheels or fans move.

• Fan: A fan is a small thing that spins when connected to
a motor. It moves air and keeps things cool, just like a

bigger fan you might have at home.

34 RoboGenius (V1.0)-II