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Results tagged with core
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user 115
For questions about the Earth's core. The center of the Earth is primarily iron-nickel.
13
votes
Why is Earth's inner core made of an iron-nickel alloy?
Iron, nickel, and other heavy metals like gold, are what makes up the core of the earth because they are the heaviest of the metals and so sank toward the center of the earth. … B is not correct because, (as pointed out in Spießbürger's answer):
The magnetic field needs a liquid iron core to work and therefore only
came into existence after the iron migrated to the core. …
- 2,852
9
votes
How can we determine the size and composition of Earth's inner core?
Scientists used the seismic waves created by earthquakes bouncing off the core to map out the approximate size of the earth's inner core. … Reference: Earth’s Inner Core …
- 2,852