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Date Live Level Title 01/11/2010 GCSE/All Science/Chemistry/Core/Building Materials Atoms+     Compounds+     Carbonates+     Limestone+     Environmental Aspects+     Symbols, formulae and equations+         GCSE/All Science/Chemistry/Core/Metals Extraction of Metals+     Transition Metals+         GCSE/All Science/Chemistry/Core/Crude Oil Crude Oil+     Extraction of Oil+…