Practice Layers Of The Earth (2.2) - Structure of the Earth

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9 questions

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3 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is the outermost layer of the Earth called?
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Think of the first layer we see.
Question 2.
What are the two types of crust?
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Consider what the land and ocean are made of.
3Question 3.
What is the main composition of the Earth's core?
- Iron and nickel
- Silicate rocks
- Basalt
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Think about what makes the core distinct from other layers.
4Question 4.
The mantle is primarily made of which type of rocks?
- Granite
- Basalt
- Silicate rocks
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Recall what the mantle consists of.
Question 5.
Explain how the behavior of seismic waves helps scientists understand the Earth's inner structure.
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Consider how the speed of waves changes with layer density.
Question 6.
Discuss the role of the asthenosphere in plate tectonics.
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Think about friction and movement on surfaces.

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