Moorlands Primary School


Science – Electricity Lesson 4

  1. Watch the following video clip which explains about electrical conductors and insulators
  2. Watch the second clip and then carry out the quick activity at the bottom of the web page.
  3. Watch the video and note down which materials conduct electricity and which don’t (making them insulators).
  4. Write down your own definition as to what a conductor and insulator are in terms of whether they allow electricity to flow through them.
  5. Have a go at the electrical quiz to check your understanding of electrical conductors and insulators.
  6. Do you think humans conduct electricity? Why/why not?  Use scientific language to explain your reasoning.  Then watch this last video clip  to see if you were right.

Answers from last week’s prediction task!

  1. No – the bulb is not connected back to the battery to make a whole circuit.
  2. No- the wires need to connect to either end of the battery, not both to the same terminal.
  3. Yes!
  4. Yes!
  5. No – that second wire on the bulb needs to connect back to the battery.
  6. Yes… but!  With 2 batteries there is a chance you will ‘blow’ the bulb by introducing too powerful an electrical current.
  7. Nope!  No power source!
  8. Yes!  The cell/battery is just powering a buzzer instead of a bulb.
  9. Yes! As both terminals are on one end of the motor, so that the shaft can turn (the bit sticking out by the word ‘motor’)!
  10. No – you would need to connect the two batteries to form a whole loop, but be careful not to ‘blow’ the bulb with 2 batteries.