Earth's Layers

Flashcard
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Science
•
8th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
What are the layers of the Earth?
Back
The Earth is composed of four main layers: the crust, mantle, outer core, and inner core.
2.
FLASHCARD QUESTION
Front
What is the outermost layer of the Earth called?
Back
The outermost layer of the Earth is called the crust.
3.
FLASHCARD QUESTION
Front
What is the mantle?
Back
The mantle is the layer of the Earth located between the crust and the outer core, composed of semi-solid rock.
4.
FLASHCARD QUESTION
Front
What is the difference between primary waves and secondary waves?
Back
Primary waves (P-waves) are faster and can travel through solids and liquids, while secondary waves (S-waves) are slower and can only travel through solids.
5.
FLASHCARD QUESTION
Front
What is the state of matter of the inner core?
Back
The inner core is solid due to the immense pressure despite the high temperatures.
Tags
NGSS.HS-ESS2-3
6.
FLASHCARD QUESTION
Front
What is the outer core made of?
Back
The outer core is composed of liquid iron and nickel.
Tags
NGSS.MS-PS1-1
7.
FLASHCARD QUESTION
Front
How does the Earth's core contribute to its magnetic field?
Back
The movement of molten iron in the outer core generates electric currents, which produce the Earth's magnetic field.
Tags
NGSS.HS-PS2-5
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