What causes convection currents in the Earth's mantle?
Earth's Interior

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Science
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6th - 8th Grade
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Hard
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1.
FLASHCARD QUESTION
Front
Back
A temperature difference in the mantle, resulting in movement from hot areas to cooler ones.
2.
FLASHCARD QUESTION
Front
In which layer of the Earth do convection currents occur?
Back
Mantle
3.
FLASHCARD QUESTION
Front
What provides direct evidence of the Earth's interior?
Back
Examining rock samples from drilling or volcanic eruptions.
4.
FLASHCARD QUESTION
Front
What type of evidence do seismic waves provide about the Earth's interior?
Back
Indirect evidence that shows where rock composition and form changes.
5.
FLASHCARD QUESTION
Front
What is the composition of the Continental Crust?
Back
Lighter colored, coarse grained rocks, usually referred to as 'dry land'.
6.
FLASHCARD QUESTION
Front
What is the primary layer of the Earth that is solid and composed mainly of silicate rocks?
Back
Crust
7.
FLASHCARD QUESTION
Front
What is the outer layer of the Earth called?
Back
Crust
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