What are the main layers of the Earth?
Earth's Layers Flashcard Review

Flashcard
•
Science
•
6th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
The main layers of the Earth are the crust, mantle, outer core, and inner core.
2.
FLASHCARD QUESTION
Front
What is the composition of the Earth's crust?
Back
The Earth's crust is primarily composed of rocks and minerals, including silicates and oxides.
3.
FLASHCARD QUESTION
Front
What is the temperature of the inner core?
Back
The temperature of the inner core can reach up to 5,700 degrees Celsius (10,300 degrees Fahrenheit).
4.
FLASHCARD QUESTION
Front
What is the difference between the inner core and outer core?
Back
The inner core is solid due to immense pressure, while the outer core is liquid and composed mainly of iron and nickel.
5.
FLASHCARD QUESTION
Front
How thick is the Earth's crust compared to other layers?
Back
The Earth's crust is the thinnest layer, averaging about 5-70 kilometers thick.
6.
FLASHCARD QUESTION
Front
What is the mantle made of?
Back
The mantle is made of semi-solid rock, primarily silicate minerals, and extends to about 2,900 kilometers deep.
7.
FLASHCARD QUESTION
Front
What is the role of convection currents in the mantle?
Back
Convection currents in the mantle drive plate tectonics and influence volcanic activity.
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