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Grade 5 - Revision of Unit 7-8

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  • Renewable sources of energy are unlimited. TRUE or FALSE?
    TRUE
  • Plastic is conductor or insulator?
    insulator
  • Metals are conductors or insulators?
    Conductors
  • Name 3 non-renewable sources of energy
    coal, crude oil, natural gas
  • Two examples of insulator
    Paper, wood, ceramics...
  • Coal is a type of fossil fuel. TRUE or FALSE?
    TRUE
  • The using of non-renewable sources of energy causes pollution. TRUE or FALSE?
    TRUE
  • Name one insulator in your house. For example: glasses, a book....
    clothes, a ceramic pot, a rubber band, a balloon, a plastic cup...
  • What are conductors?
    Conductors are materials which allow electricity to pass through.
  • Two examples of conductor
    Copper, iron, silver, steel...
  • Anna has a battery and a wire. What does she need to add in to make a simple circuit?
    a light bulb (or other electrical device)
  • Name a material that can be used to make the outer of electric wires.
    plastic
  • Name 3 devices that need electricity
    light bulb, fan, computer, phone....
  • Name one conductor in your house. For example: a metal spoon
    a metal knife, a pair of scissors, a metal pot...
  • Name 2 materials that can be used to make the core of electric wires.
    Copper, iron, silver, steel...
  • We need to burn fossil fuels to get energy. TRUE or FALSE?
    TRUE
  • Porcelain is conductor or insulator?
    insulator
  • What are insulators?
    Insulators are materials which do not allow electricity to pass through.
  • Should we touch the conductor in a circuit by our hand?
    NO!!!
  • Non-re_ _w_ble source of energy
    Non-renewable source of energy (n, e, a)
  • Name 3 main components of a simple circuit
    battery (or power source), wire, light bulb (or electrical device)
  • Name 3 renewable sources of energy
    hydropower, wind power, solar energy
  • Name two ends of a battery
    negative end, positive end
  • F_s_il fuel
    Fossil fuel (o, s)
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