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Monday 25th January 2021- Science

LO: To identify electrical insulators and conductors.

 

Conductors

Some materials let electricity pass through them easily. These materials are known as electrical conductors.

Many metals, such as copper, iron and steel, are good electrical conductors. That is why the parts of electrical objects that need to let electricity pass through are always made of metal.

Metal is used in plugs to allow electricity to transfer from the wall socket, through the plug, and into a device such as a radio or TV.

In a light bulb, the metal filament conducts electricity and causes the light bulb to light up.

 

Insulators

Some materials do not allow electricity to pass through them. These materials are known as electrical insulators.

Plastic, wood, glass and rubber are good electrical insulators. That is why they are used to cover materials that carry electricity.

The plastic covering that surrounds wires is an electrical insulator. It stops you from getting an electrical shock because the electricity doesn’t pass through it.

 

Watch the video below to learn more. Make notes to help you with your task.

Follow this link to watch a video, complete an activity and take part in a quiz.

Make notes to help you with your task.

 

https://www.bbc.co.uk/bitesize/topics/z2882hv/articles/zxv482p

 

Task- Create a poster, report, powerpoint or even a video to explain:

  • What an electrical insulator is
  • What an electrical conductor is
  • How to test materials to see if they are insulators or conductors
  • Examples of insulators and conductors and why those materials are used.
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