1) Chemical elements: a) are always solids. b) cannot be split into anything simpler. c) can be split up using electricity. d) can be split up by heating them. 2) Which of these materials is found naturally in tiny pieces? a) gold b) aluminium c) glass d) bronze 3) Which of these metals is a mixture? a) aluminium b) bronze c) iron d) copper 4) Which metal was only discovered after the invention of the electric cell (battery)? a) gold b) copper c) aluminium d) bronze 5) The smallest part of an element is called: a) a compound. b) an ion. c) an atom. d) a molecule. 6) In Britain, we use the chemical symbol Fe for the element iron. What symbol would they use in France? a) Fe b) Ir c) I d) You can’t tell unless you know the word for iron in French. 7) Which of these pictures shows the particles in a solid, pure metal? a) A b) B c) C d) D 8) The correct way to write the chemical symbol for the element calcium is: a) CA. b) ca. c) Ca. 9) Which list contains only metals? a) copper, gold, sulphur b) copper, gold, silver c) silver, oxygen, iodine d) oxygen, iodine, sulphur 10) Which list contains three typical properties of metals? a) good conductor of electricity, strong, high melting point b) poor conductor of electricity, weak, low melting point c) good conductor of heat, brittle, low melting point d) poor conductor of heat, strong, high melting point 11) Which list contains three typical properties of non-metals? a) poor conductor of heat, strong, high melting point b) good conductor of heat, brittle, low melting point c) poor conductor of electricity, weak, low melting point d) good conductor of electricity, strong, high melting point 12) Copper is used for electrical wiring because it is a) flexible and a good conductor of heat. b) flexible and a good electrical conductor. c) shiny and a good electrical insulator. d) shiny and flexible. 13) A compound contains: a) only one type of atom. b) only one element c) at least two elements joined together d) only two elements joined together. 14) The smallest particle of water with the formula H2O is called: a) a molecule b) an ion. c) an atom. d) an element. 15) When iron rusts it turns into iron oxide. If you started with 100 g of iron, the mass of the rust formed would be: a) less than 100 g. b) exactly 100 g. c) impossible to predict. d) more than 100 g. 16) The chemical with the formula NH3 is usually known as ammonia. It could also be called: a) nitrogen oxide. b) nitrogen hydride. c) nitrogen hydrate. d) nitrogen hydroxide 17) If you wash a glass bottle and fill it up with drink again this is: a) renewing. b) recycling. c) re-using. d) retailing. 18) Aluminium is made from aluminium ore by: a) passing a current through the solid ore. b) heating the ore until it melts and then passing a current through it. c) heating it up in a furnace d) mixing it with charcoal and heating it. 19) Recycling aluminium cans: a) saves energy but means that more ore is used. b) saves on ore and landfill costs, and also saves energy. c) saves on ore and landfill costs, but needs more energy. d) avoids landfill, but needs more energy. 20) Paper manufacture can be sustainable because: a) it is made from crude oil, which is a fossil fuel b) it is made from crude oil, which is a renewable resource. c) it is made from wood, which is a fossil fuel. d) it is made from wood, which is a renewable resource.

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