Earth 0.0 / 5 ? ChemistryThe earth and its atmosphereGCSEAQA Created by: LokeKershaw1Created on: 12-10-15 15:03 relatively thin and rocky crust 1 of 6 made from solid nickel and iron inner core 2 of 6 The theory of continental drift was proposed at the beginning of the last century by German scientist Alfred Wegener 3 of 6 made from liquid nickel and iron outer core 4 of 6 which originates from chalk or limestone marble 5 of 6 has the properties of a solid, but can flow very slowly mantle 6 of 6
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