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The Earth’s Core

Pages 12-13 (Inside Earth)

 

How do scientists study the Earth?

 

 

What is the Earth’s core made of?

·        Inner Core- P-waves speed up so it is a solid.

·        Temperature of 5000°C

·        Made up of the elements Iron and Nickel

·        It is solid due to the enormous pressure of the Earth.

·        Magnetic property comes from the iron in the core.

·        Outer Core-P-waves slow down and S waves disappear so it is a liquid

·        Also made of the elements Iron and Nickel

·        Temperature ranges from 2200°C to 5000°C

 

What gives Earth its magnetic property?