What is erosion?
Earth Science Rocks Unit Test Review

Flashcard
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Science
•
8th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
The movement of weathered material (sediment) from one location to another.
2.
FLASHCARD QUESTION
Front
What does 'Chemical Composition' mean in relation to minerals?
Back
It refers to the specific elements that a mineral contains in exact proportions.
3.
FLASHCARD QUESTION
Front
What is the difference between cleavage and fracture in minerals?
Back
Cleavage is the tendency of a mineral to break along flat surfaces, while fracture describes an irregular break.
4.
FLASHCARD QUESTION
Front
Define igneous rock.
Back
Rock that forms when melted, or molten rock from deep below Earth's surface cools and hardens.
5.
FLASHCARD QUESTION
Front
What is metamorphism?
Back
The process that changes existing rocks into new types of rocks through heat, pressure, or chemical processes.
6.
FLASHCARD QUESTION
Front
What is sedimentary layering?
Back
The process where sediments accumulate in layers over time, often leading to the formation of sedimentary rocks.
7.
FLASHCARD QUESTION
Front
What is the role of magma in rock formation?
Back
Magma can intrude into existing rocks and, upon cooling, can form igneous rocks.
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