1) In science, the texture of a rock is: a) the size and shape of the grains. b) its colour. c) whether it is hard or crumbly. d) the way it feels. 2) Which statement is true? a) Sandstone is made from rounded grains with no gaps between them. b) Granite is made from rounded grains with gaps between them. c) Sandstone is made from interlocking crystals. d) Granite is made from interlocking crystals. 3) Some rocks are porous because: a) the rock is made of interlocking crystals. b) animals have dug burrows in the rock. c) water can get into gaps between the grains. d) the rock dissolves in water. 4) Rainwater is: a) alkaline, because it contains dissolved salts. b) acidic, because it contains dissolved salts. c) alkaline, because it contains dissolved gases. d) acidic, because it contains dissolved gases. 5) Physical weathering happens to rocks when: a) the rock gets struck by lightning. b) the weather is always cold. c) the weather keeps changing between hot and cold. d) the weather is always hot. 6) What happens to pieces of rock when they are transported? a) They dissolve. b) They get smaller. c) They get bigger. d) Nothing. 7) All fossils are: a) skeletons of animals. b) the remains of dead animals or plants trapped in igneous rock c) very old animals. d) the remains of dead animals or plants trapped in sedimentary rock 8) Put the stages of Sedimentary rock formation in the right order: a) transportation, compression, sedimentation b) compression, transportation, sedimentation c) transportation, sedimentation, compression d) sedimentation, transportation, compression 9) Which statement describes some of the ways in which metamorphic rocks are different from sedimentary rocks? a) Metamorphic rocks do not contain crystals and are very porous. b) Metamorphic rocks are softer, more porous and have large grains. c) Metamorphic rocks may be harder, less porous and have crystals which may be lined up. d) Metamorphic rocks are softer, less porous and may contain clear fossils. 10) Which of the following is an igneous rock? a) granite b) chalk c) slate d) sandstone 11) Which of the following is a metamorphic rock? a) granite b) slate c) sandstone d) limestone 12) When an igneous rock is forming: a) large crystals will form if the magma heats up quickly. b) small crystals will form if the magma cools slowly. c) large crystals will form if the magma cools slowly. d) small crystals will form if the magma evaporates quickly. 13) The list below shows the best pH range for the healthy growth of some common plants. Which of the plants would grow well in an alkaline soil? a) cabbage 7.5–8.0 b) broad beans 5.5–6.5 c) potatoes 4.5–6.5 d) tomatoes 5.5–7.0 14) If you heat a piece of copper, its mass goes up because: a) it rusts b) metals expand when they are hot. c) heating metals produces carbon dioxide. d) it has reacted with oxygen from the air. 15) calcium carbonate ==> calcium oxide + carbon dioxide. What type of chemical reaction is this? a) combustion b) oxidation c) reduction d) thermal decomposition 16) what salt is produced when copper carbonate reacts with hydrochloric acid? a) copper sulphate b) calcium chloride c) copper chloride d) copper chlorate 17) What is the name for this chemical: MgNO3 a) magnesium sulphate b) magnesium nitride c) magnesium sulphide d) magnesium nitrate 18) If I add iron to silver sulphate what will be produced? a) no reaction b) iron nitrate and silver c) iron sulphate and iron d) iron sulphate and silver 19) Which of the following would be one of the effects of global warming? a) more acid rain b) fish being killed in lakes c) flooding of low-lying areas d) increased numbers of skin cancers 20) Some scientists do not agree that global warming will occur. Why are some scientists not sure what will happen? a) Acid rain will cause temperatures to decrease. b) The situation is very complex and difficult to predict. c) Our temperature measurements are not accurate at present. d) An ice age is about to start and so temperatures will definitely fall.

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