3-ELE-01

Outcomes

• Movement of electrons causes insulators to gain electrostatic charge
• Electrostatic charges can apply forces on one another

Specification References

• 2.19 identify common materials which are electrical conductors or insulators including metals and plastics
• 2.20 recall that insulating materials can be charged by friction
• 2.21 explain that psoitive and negative elecrostatic charges are produced on materials by the loss or gain of electrons
• 2.22 recall that there are forces of attraction between unlike charges and forces of repulsion between like charges

Starter

• Structure of an atom recap – get pupils to label each part of the atom

Main Body of Lesson

• Rod rubbing – Water stream, bits of paper, other rods on watch glass
• Balloon rubbing
• Only electrons move, only insulators store charge