1) Name the four layers of the structure of the Earth. a) Crust, outer mantle, inner mantle, core b) Outer crust, inner crust, mantle, core. c) Surface, magma layer, outer core, inner core. d) Crust, mantle, outer core, inner core. 2) Name the two most common gases in the atmosphere. a) Nitrogen, argon. b) Nitrogen, oxygen. c) Oxygen, carbon dioxide. d) Carbon dioxide, water vapour. 3) What are sedimentary rocks? a) Rocks that are made of separate grains, formed from sediments by compaction or cementation. b) Rocks that are made of separate grains, formed from sediments by compaction or deposition. c) Rocks that are made of separate grains, formed from sediments by weathering or erosion. d) Rocks that are made of separate grains, formed from sediments by compression or attrition. 4) Name three examples of sedimentary rocks. a) Chalk, granite, sandstone. b) Basalt, limestone, sandstone. c) Chalk, limestone, sandstone. d) Chalk, limestone, gneiss. 5) What are igneous rocks? a) Rocks formed of crystals, made when magma or lava compacts and melts. b) Rocks formed of crystals, made when magma or lava cools and freezes. c) Rocks formed of crystals, made when magma or lava compresses and condenses. d) Rocks formed of crystals, made when magma or lava thaws and erodes. 6) Name three types of igneous rocks. a) Basalt, granite, obsidian. b) Slate, granite, obsidian. c) Basalt, granite, marble. d) Basalt, limestone, obsidian. 7) What are metamorphic rocks? a) Rock formed by the action of heat and cementation on sedimentary or igneous rocks. b) Rock formed by the action of heat and compaction on sedimentary or igneous rocks. c) Rock formed by the action of heat and deposition on sedimentary or igneous rocks. d) Rock formed by the action of heat and pressure on sedimentary or igneous rocks. 8) Name three examples of metamorphic rock. a) Marble, slate, gneiss. b) Marble, mudstone, gneiss. c) Limestone, slate, gneiss. d) Marble, slate, basalt. 9) What does the rock cycle show? a) How rocks change and how their materials are recycled into new minerals over millions of years. b) How rocks change and how their materials are recycled into new rocks over millions of years. c) How rocks change and how their materials are recycled into new crystals over millions of years. d) How rocks change and how their materials are recycled into new sediments over millions of years. 10) Name the main processes of the carbon cycle. a) Chemosynthesis, respiration, combustion, dissolving in the oceans. b) Photosynthesis, breathing, combustion, dissolving in the oceans. c) Photosynthesis, respiration, combustion, dissolving in the lakes. d) Photosynthesis, respiration, combustion, dissolving in the oceans. 11) Name two examples of greenhouse gases. a) Carbon dioxide, methane. b) Carbon monoxide, methane. c) Carbon monoxide, butane. d) Carbon dioxide, butane. 12) What is the greenhouse effect? a) The reflection of energy by gases in the atmosphere. b) The dissipation of energy by gases in the atmosphere. c) The absorbing of energy by gases in the atmosphere. d) The emitting of energy by gases in the atmosphere. 13) What is global heating? a) The sharp increase in Earth's air temperature. b) The gradual increase in Earth's air temperature. c) The sharp decrease in Earth's air temperature. d) The gradual decrease in Earth's air temperature. 14) What is recycling? a) Collecting and processing used materials to make new objects. b) Collecting and processing new materials to make new objects. c) Collecting and processing raw materials to make new objects. d) Collecting and processing metal materials to make new objects. 15) Name four materials that can be recycled. a) Wood, plastic, aluminium, glass. b) Paper, porcelain, aluminium, glass. c) Paper, plastic, bauxite, glass. d) Paper, plastic, aluminium, glass.

The Earth KS3

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