Water that has been boiled and the steam has been allowed to cool down to form liquid water again, making it pure (no salts)., tap water, distilled water, A material that does not allow electricity to pass through it, insulator, metal, A material that allows electricity to pass through it, conductor, glass, A rope of wires, socket, cable, A device for connecting an electric wire or cable to an electricity supply, plug, voilt, The plastic-coated wire that connects to a plug at one end and an appliance at the other end, mains electricity, cord, The measurement of the power of electricity, voltage, cable, A unit to measure the strength of electricity, volt, plug, A hole in the wall connecting the plug on an appliance with the electric cables in the wall, wall volt, wall socket, The effect of a sudden flow of electricity through a person's body, electric shock, mains electricity, Water that is very clean and has no salt:, tap water, distilled water, Something that electricity cannot go through:, insulator, metal, Something that electricity can go through:, conductor, glass, Many wires grouped together:, socket, cable, Something you use to connect a device to electricity:, plug, voilt, A wire that connects an appliance to a plug:, mains electricity, cord, What do we call the strength of electricity?, voltage, cable, What unit is used to measure the strength of electricity?, volt, plug, The place in the wall where you plug in devices:, wall volt, wall socket, When electricity passes through your body suddenly:, electric shock, mains electricity, Which metal is most commonly used for electrical wiring?, Silver, Copper, Silver has a conductivity rating of 105, which is higher than copper (100). Why don't we use silver for all our electrical wiring?, Silver is too expensive to use for long wires., Silver is an insulator., The outer part of a plug is made of a __________ casing. This material is an __________ which keeps us safe from electric shocks., plastic / insulator, plastic / conductor, The __________ and the __________ are made of metal because they are good __________ that allow electricity to flow., Brass pins / copper wire / conductors, copper wire / plastic casing / conductors, Why must you always pull a plug out by the plastic cover rather than pulling the cord?, The plastic cover is a conductor., Pulling the cord might break the wires inside or expose you to a shock., what material is used for the pins that go into the wall socket?, Brass, Gold, Material A allows electricity to pass through it easily. Material B does not allow electricity to pass through it. What are these materials called?, A is a Conductor, B is an Insulator, A is an Insulator, B is a Conductor, Which of these materials is an insulator used to coat electrical wires to make them safe to touch?, Plastic, Brass.

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