Conductors and Insulators KS2
Teaching conductors and insulators KS2? This guide explains what electrical conductors and insulators are, gives clear classroom examples, and shares simple activity ideas to help children understand how different materials affect the flow of electricity.
Conductors and insulators are usually taught in Year 4 Science as part of the KS2 electricity topic. Children learn that some materials allow electricity to pass through them, while others do not. They also begin to recognise that metals are usually good electrical conductors and that insulating materials are used to help keep people safe.
👉 View the Conductors and Insulators KS2 lesson
What is a conductor?
A conductor is a material that allows electricity to pass through it. In a complete electrical circuit, a conductor lets the electrical current flow from one component to another.
Many metals are good electrical conductors. Common examples include:
- copper
- iron
- steel
- brass
- aluminium
- gold
What is an insulator?
An insulator is a material that does not allow electricity to pass through it easily. Insulators are important because they help stop electrical current travelling where it should not go.
Common examples of electrical insulators include:
- plastic
- rubber
- wood
- glass
- ceramic
- air
Conductors and insulators in everyday life
Many everyday objects contain both conductors and insulators. A plug is a good example. The metal pins are conductors because they need to allow electricity to pass from the socket into the appliance. The outer casing is made from plastic, which is an insulator, to help stop people touching the electrical current.
Electrical wires are another useful example for KS2 children. Inside the wire is metal, which conducts electricity. Around the outside is plastic or rubber, which insulates the wire and makes it safer to handle.
How to teach conductors and insulators in KS2
A practical investigation is one of the clearest ways to teach conductors and insulators. Children can build a simple circuit with a battery, wires and a bulb, then test different materials by placing them into a gap in the circuit.
If the bulb lights up, the material is a conductor. If the bulb does not light up, the material is an insulator. This gives children a simple, visual way to see how different materials affect the flow of electricity.
Conductors and insulators KS2 activity ideas
- Sort materials: Give children a selection of objects and ask them to predict whether each one is a conductor or an insulator.
- Test materials in a circuit: Children can use a simple circuit to test whether each material allows electricity to pass through it.
- Record results in a table: Pupils can record their predictions, observations and conclusions.
- Look for patterns: Encourage children to notice that most metals are conductors, while materials such as plastic and rubber are insulators.
- Apply learning: Ask children to explain why electrical objects often have metal parts and plastic or rubber coverings.
Common misconceptions about conductors and insulators
Children sometimes think that all hard materials are conductors or that all shiny materials allow electricity to pass through them. Practical testing helps them understand that the material itself matters, not just how it looks or feels.
Another common misconception is that an insulator “blocks” electricity completely in every situation. At KS2, children only need to understand that insulators do not allow electricity to pass through them easily in the type of simple circuits they are investigating.
Ready-to-teach conductors and insulators KS2 lesson
PlanBee’s Conductors and Insulators KS2 lesson is part of the Circuits and Conductors Year 4 Science scheme. It includes everything you need to teach this objective clearly and confidently.
In this ready-to-teach lesson, children investigate electrical conductors and insulators by testing different materials in a simple circuit. They learn how conductors and insulators are used in everyday electrical objects, then apply their understanding through differentiated activities.
The lesson pack includes:
- a detailed lesson plan
- a slideshow for the teaching input
- differentiated activity ideas
- printable worksheets and resources
- materials to support independent learning
👉 View the Conductors and Insulators KS2 lesson
Complete Year 4 Electricity Planning
The Conductors and Insulators lesson is part of PlanBee’s complete Circuits and Conductors Year 4 Science scheme of work. Across the five lessons, children explore electricity, electrical safety, simple circuits, conductors, insulators and how to make a simple electrical device.
Conductors and insulators KS2 FAQs
What are conductors and insulators?
Conductors are materials that allow electricity to pass through them. Insulators are materials that do not allow electricity to pass through them easily.
What are examples of electrical conductors?
Most metals are good electrical conductors. Examples include copper, iron, steel, brass, aluminium and gold.
What are examples of electrical insulators?
Plastic, rubber, wood, glass, ceramic and air are examples of electrical insulators.
Why are insulators important?
Insulators help keep people safe by stopping electrical current from travelling where it should not go. They are used around wires, plugs and electrical appliances.
What year group learns about conductors and insulators?
Conductors and insulators are usually taught in Year 4 as part of the KS2 Science electricity topic.
How can children test conductors and insulators?
Children can build a simple circuit with a battery, wires and a bulb, then place different materials into a gap in the circuit. If the bulb lights up, the material is a conductor. If it does not, the material is an insulator.
