What makes up the Earth? -- Early ideas about the Earth -- Cocoon of gas -- Climate in the past -- Watery planet -- Properties of water -- Realms of ice -- Building blocks -- Investigating rocks -- Igneous rocks -- Sedimentary rocks -- Metamorphic rocks -- Challenge of the ocean -- Modern oceanography -- Continental drift -- Plate tectonics -- Formation of the ocean floor -- Exploring the interior -- Earthquakes and seismology -- Volcanology -- Mountain building -- Plateaus and rifts -- Weathering processes -- Life from rock -- Erosion -- Deposition -- Glaciation -- Age of the Earth -- Naming the Earth -- Did you know? -- Geoscientists at work -- Find out more -- Glossary -- Index.