Conductors and Insulators

Conductors are made of materials that electricity can flow through easily.
These materials are made up of atoms whose electrons can move away freely.

Some examples of conductors are:

  • Copper
  • Aluminum
  • Platinum
  • Gold
  • Silver
  • Water
  • People and Animals
  • Trees

Insulators are materials opposite of conductors. The atoms are not easily freed and are stable, preventing or blocking the flow of electricity.

Some examples of insulators are:

  • Glass
  • Porcelain
  • Plastic
  • Rubber

Electricity will always take the shortest path to the ground. Your body is 60 percent water which makes you a good conductor of electricity. If a power line falls on a tree and you touch the tree, you then become the path or conductor to the ground and could get electrocuted.

The rubber or plastic on an electrical cord provides an insulator for the wires. By covering the wires, electricity cannot go through the rubber and is forced to follow the easier path through the aluminum or copper wires.