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Year 8 Science — Metals and non-metals

Tell metals from non-metals by malleability, ductility, sonority and conduction, say what rusting and corrosion need, and give the nature of a metal oxide and a non-metal oxide.

Name: ________________________

  1. 1.Match each non-metal to the everyday job the chapter gives it.

    • Nitrogen
    • Chlorine
    • Iodine
    • goes into making fertilisers
    • put on a wound as an antiseptic
    • used to purify water

  2. 2.Why does the chapter say that wood, glass and plastic are neither metals nor non-metals?

    • a) Because they are made in factories rather than dug out of the ground
    • b) Because they float in water, and metals and non-metals sink
    • c) Because those two names are for elements, and these materials are not elements
    • d) Because they are neither hard nor soft enough to be tested

  3. 3.Heat passing from one point of a spoon along to another point has a one-word name in this chapter. What is it?

  4. 4.What has to reach an iron nail before a brown deposit forms on it?

    • a) Sunlight and dry air
    • b) Water on its own
    • c) Water and air together
    • d) Dry air on its own

  5. 5.Match each property to what a material showing it can do.

    • Malleability
    • Ductility
    • Sonority
    • gives a ringing sound when struck
    • can be drawn into wires
    • can be beaten into thin sheets

  6. 6.An iron gate left out through a wet season grows a brown flaky deposit. What is that deposit called?

  7. 7.A gas made by burning a non-metal is dissolved in water. What nature would you expect that solution to have?

    • a) Neutral
    • b) Acidic
    • c) Basic first and then acidic
    • d) Basic

  8. 8.Sort each of these elements into its family.

    Groups: Metal · Non-metal

    • Iron
    • Magnesium
    • Copper
    • Nitrogen
    • Aluminium
    • Carbon
    • Oxygen
    • Sulfur

Answer key — Year 8 Science — Metals and non-metals

  1. 1. Nitrogen → goes into making fertilisers; Chlorine → used to purify water; Iodine → put on a wound as an antiseptic
  2. 2. c) Because those two names are for elements, and these materials are not elements
  3. 3. conduction
  4. 4. c) Water and air together
  5. 5. Malleability → can be beaten into thin sheets; Ductility → can be drawn into wires; Sonority → gives a ringing sound when struck
  6. 6. rust
  7. 7. b) Acidic
  8. 8. Copper → Metal; Aluminium → Metal; Iron → Metal; Magnesium → Metal; Sulfur → Non-metal; Carbon → Non-metal; Oxygen → Non-metal; Nitrogen → Non-metal