🔌 Part 1: Circuit Knowledge

1. What are the three main parts needed to make a complete electrical circuit?

Battery, wire, light bulb

Switch, plastic, rubber

Metal, wood, paper

Water, air, fire

2. Which materials are good electrical conductors? (Check all that apply)

Copper wire

Aluminium foil

Plastic ruler

Metal paperclip

Rubber band

3. What happens when you add more light bulbs to a series circuit?

The bulbs get brighter

The bulbs get dimmer

Nothing changes

The battery stops working

4. Circle the correct symbol for a battery in a circuit diagram:

A) ——o—— B) ——|——|—— C) ——⚬—— D) ——△——

⚡ Part 2: Circuit Investigation

5. Draw a simple circuit that includes a battery, wire, switch, and light bulb. Label each part.

6. Explain why a light bulb won't work if there's a gap in the circuit.

7. Complete the sentence: Materials that allow electricity to flow through them easily are called _____________, while materials that stop electricity are called _____________.

8. You test three materials in your circuit: a metal spoon, a wooden pencil, and a plastic bottle. Predict which ones will make the bulb light up and explain why.

🔬 Part 3: Real-World Connections

9. Name two places in your home where you can see electrical circuits being used.

1. _________________________

2. _________________________

10. Why do electricians wear rubber gloves when working with electrical wires?

11. Extension Challenge: If you measured the voltage across a light bulb as 3 volts and the current through it as 0.5 amps, what is the resistance of the bulb? (Use Ohm's Law: V = I × R)

12. Design a circuit that could turn on two lights independently (one switch for each light). Draw your design below.