What is the inner core of the Earth?
Earth's Interior

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Science
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9th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
The inner core is the innermost layer of the Earth, composed primarily of iron and nickel, and is solid due to the extreme pressure from the overlying layers.
2.
FLASHCARD QUESTION
Front
Why is the inner core solid?
Back
The inner core is solid because of the extreme pressure from the other layers of the Earth, which prevents it from melting despite the high temperatures.
3.
FLASHCARD QUESTION
Front
What is the outer core?
Back
The outer core is the layer of the Earth located beneath the mantle and above the inner core, composed of liquid iron and nickel, and is responsible for generating Earth's magnetic field.
4.
FLASHCARD QUESTION
Front
What evidence did Alfred Wegener use to support the theory of continental drift?
Back
Alfred Wegener used fossil evidence, showing that similar fossils were found on different continents, indicating that they were once connected.
5.
FLASHCARD QUESTION
Front
Who proposed the theory of continental drift?
Back
Alfred Wegener proposed the theory of continental drift, suggesting that continents were once part of a single landmass.
6.
FLASHCARD QUESTION
Front
What are seismic waves?
Back
Seismic waves are energy waves that travel through the Earth, generated by earthquakes or other geological activity.
7.
FLASHCARD QUESTION
Front
What is the mantle?
Back
The mantle is the thick layer of the Earth located between the crust and the outer core, composed of semi-solid rock that flows slowly over time.
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