The Structure Of The Earth In Detail
| Education : Geography 1 - Inner Core Centre of the earth, and hottest. Solid. Temps reach 5500C. Iron and nickel are the metals here 2 - Outer core Liquid. Iron and nickel. Very hot, temps reach 5000c 3 - Mantle Semi-molten rock. Approx 2900km diameter. 4 - Crust Outer layer we walk on. Between 0 - 60km thick Disclaimer: the structure of the earth is not fully known, changes from time to time, and all results are inferred from experiment and not fully "known"
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