Simple Internal Structure Of The Earth Diagram. The metal at the inner core stays solid because of the incredible. In this activity students will label a model of the earth students should include a description of each part in addition to the label and arrow.
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It spins at its own rate as much as 0 2o of longitude per year faster than the earth layers above it. The outer core is a liquid because the temperatures there are adequate to melt the iron nickel alloy. Image courtesy of the univ.
Made mainly of iron the temperature of the ball is 5 000 c to 6 000 c that s up to 6 000 times hotter than our atmosphere and scorching enough to make metal melt.
Interestingly there are two cores noted the inner and the outer. The earth s inner core is a huge metal ball 2 500km wide. The core is divided into two different zones. The shape of the earth is an oblate spheroid because it is slightly flattened at the poles and bulging at the equator.
