What is the outer core?
Earth History 4.85 Igneous rock / Earth Layers

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Science
•
8th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
The outer core is a liquid layer of the Earth located beneath the mantle and above the inner core, primarily composed of iron and nickel.
2.
FLASHCARD QUESTION
Front
What is the crust?
Back
The crust is the outermost layer of the Earth, consisting of solid rock and forming the continents and ocean floors.
3.
FLASHCARD QUESTION
Front
What is the mantle?
Back
The mantle is a thick layer of rock located beneath the crust, making up the majority of the Earth's volume, and is involved in tectonic activity.
4.
FLASHCARD QUESTION
Front
What is magma?
Back
Magma is molten rock located beneath the Earth's surface, which can rise to form igneous rocks when it cools.
5.
FLASHCARD QUESTION
Front
What is an intrusive igneous rock?
Back
An intrusive igneous rock is formed from magma that cools and solidifies slowly beneath the Earth's surface, resulting in larger crystal grains.
6.
FLASHCARD QUESTION
Front
What is an extrusive igneous rock?
Back
An extrusive igneous rock is formed from lava that cools quickly on the Earth's surface, resulting in smaller crystal grains.
7.
FLASHCARD QUESTION
Front
Which layer of the Earth is the thickest?
Back
The mantle is the thickest layer of the Earth.
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