Circuit Parts Observation Worksheet

Name:

Date:

Electric circuit diagram with battery, wires, bulb and switch

🎯 WALT (We Are Learning To)

I can describe why parts of a circuit might work differently, such as why a bulb is dim or a switch stops the electricity.

✅ Success Criteria:

• I can explain what makes a bulb bright or dim
• I can describe how switches control electricity
• I can identify what stops electricity flowing in a circuit

🔍 Part 1: Circuit Observations

1. Look at the circuit diagram above. What happens to the bulb when the switch is OPEN (off)?

The bulb glows brightly

The bulb glows dimly

The bulb does not light up at all

The bulb flickers on and off

2. Why does a bulb become dim in a circuit? Tick all that apply:

The battery is running low

There are too many bulbs in the circuit

The wires are too long

The connections are loose

3. Complete this sentence about electricity flow:

Electricity needs a _________ path to flow from the positive end of the battery, through the _________, and back to the negative end of the battery.

Word bank: complete, broken, circuit, switch

💡 Part 2: Problem Solving

4. Sarah built a circuit but her bulb won't light up. List THREE things she should check and explain why each one might stop the electricity flowing:

Check 1:

Why:

Check 2:

Why:

Check 3:

Why:

🌟 Extension Activity (Challenge)

Design a circuit that could make one bulb bright and another bulb dim at the same time. Draw your design and explain how it works:

📖 Dyslexia-Friendly Reading Support

Key words in simple terms:
Circuit = a path for electricity to travel
Switch = controls electricity on/off
Dim = not very bright
Complete path = no gaps or breaks