⚡ Part 1: Circuit Knowledge

1. When testing a circuit, what evidence tells us that electricity is flowing?

The bulb lights up

The wires feel warm

Both A and B

The battery gets smaller

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

Copper wire

Plastic coating

Metal switch

Rubber gloves

3. In a complete circuit, electrical energy can transform into:

Light energy only

Heat energy only

Sound energy only

Light, heat, or sound energy

4. Fill in the blanks using the word bank below:

Word Bank: conductor, insulator, current, complete, open

When the switch is closed, we have a _________ circuit. Electricity flows as a _________ through the _________ materials. An _________ like plastic stops the flow. If there's a gap, we have an _________ circuit.

🔬 Part 2: Testing and Evidence

5. You're testing your circuit device. Complete this observation table:

Test Attempt	What I Changed	Result (Working/Not Working)	Evidence I Observed
1	_________________	_________________	_________________
2	_________________	_________________	_________________

6. Explain how electricity flows through your device when the switch is closed:

Use this sentence starter: "When I close the switch, electrical energy flows through _________, which makes _________ energy."

7. Your classmate's bulb isn't lighting up. What are THREE possible problems and how would you test each one?

🔧 Part 3: Circuit Diagram and Improvement

8. Draw and label your circuit device in the box below. Include: battery, wires, switch, bulb/LED, and show the direction of current flow with arrows.

9. Based on your testing evidence, what is ONE improvement you would make to your device?

My improvement: _________________________________________________

10. Explain WHY this improvement would help, using evidence from your tests:

Start with: "This improvement would help because my evidence showed..."

Safety Reminder: List TWO important safety rules when testing electrical circuits:

1. _________________________________________________________________

2. _________________________________________________________________