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Grade 2 Science Review: Electricity

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  • What is more powerful: Cells or mains electricity?
    Mains electricity
  • Tell me 1 thing this uses a buzzer.
  • Why is the girl safe in this picture?
    She is safe because the toaster is not plugged in!
  • Cells or mains?
    Cells!
  • What is this called?
    A power station
  • Tell me 2 things that electricity can do!
    Make things move, heat or cool something, make light, make sound
  • What is this called?
    Battery / Cell
  • Is this dangerous?
    Yes!
  • Does a flashlight use mains electricity?
    No!
  • How does a switch stop electricity?
    It makes a gap in the circuit!
  • Tell me 3 things that use electricity
  • Is this safe?
    No
  • What can happen if you put something metal into a wall socket?
    You can get an electric shock!
  • What are these called?
    They are wires!
  • Does this fan use a cell or mains electricity?
    It uses mains electricity!
  • Can the remote work if you put the cells inside like this?
    No!
  • Why is this safe?
    It is safe because the cord is unplugged.
  • What it this called?
    It's a switch!
  • Does electricity move in the metal or plastic part of the wire?
    The metal part!
  • What is this called?
    It's a circuit!
  • Will the bulb turn on?
    No, the circuit is not complete.
  • Is this cord safe to use?
    No, it isn't!