What is a seismograph?
Earth Composition

Flashcard
•
Science
•
7th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
A machine that measures the times at which seismic waves arrive at different distances from an earthquake.
2.
FLASHCARD QUESTION
Front
Which layer of the Earth is the thickest?
Back
Mantle.
3.
FLASHCARD QUESTION
Front
What is the mantle?
Back
The middle layer of the Earth, which contains most of the Earth's mass.
4.
FLASHCARD QUESTION
Front
Which layer of the Earth is best described as liquid metal?
Back
Outer core.
5.
FLASHCARD QUESTION
Front
Which layer of the Earth is responsible for Earth's magnetic field?
Back
Outer core.
6.
FLASHCARD QUESTION
Front
What is the outer core?
Back
A layer of the Earth that is liquid and composed mainly of iron and nickel.
7.
FLASHCARD QUESTION
Front
What is the crust?
Back
The outermost layer of the Earth, which is the thinnest layer.
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