Conductors and Insulators

Learning Intentions

  • To learn the difference between electrical conductors and insulators

Media

Conductors and Insulators (8:34)

 

For the next activity, predict whether or not each of the following materials conducts electricity.

  • Copper
  • Plastic
  • Aluminum
  • Wood
  • Plastic marker
  • Pure water
  • Salt water
  • Screwdriver (metal driver part to plastic handle)
  • Pickle
  • Celery
  • Apple

Now watch the video and answer the questions below.

Conductor or Insulator? (3:33)

  1. Did any of the results surprise you? Why or why not?
  2. Do you have any safety concerns about the experimental setup?

High voltage power lines use insulators to prevent the high voltage from sparking from the wire to the metal tower.

Evolution of Insulators (0:42)

Evolution of insulators
byu/jacklsd ininterestingasfuck

 

Electric Insulators | Why are they Crucial? (5:34)