Stratigraphy- Flashcard 12/13

Flashcard
•
Science
•
6th Grade
•
Hard
+3
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the principle of Superposition?
Back
The principle of Superposition states that in any undisturbed sequence of rocks, the oldest layers are at the bottom and the youngest layers are at the top.
Tags
NGSS.MS-ESS1-4
2.
FLASHCARD QUESTION
Front
What does Uniformitarianism mean?
Back
Uniformitarianism is the principle that the processes that shape the Earth today, such as erosion and sedimentation, also operated in the past.
Tags
NGSS.MS-ESS2-1
NGSS.MS-ESS3-1
3.
FLASHCARD QUESTION
Front
What is an intrusion in geology?
Back
An intrusion is a body of igneous rock that forms when magma cools and solidifies beneath the Earth's surface.
4.
FLASHCARD QUESTION
Front
What is a fault?
Back
A fault is a fracture or zone of fractures between two blocks of rock, which can cause earthquakes.
Tags
NGSS.MS-ESS3-2
5.
FLASHCARD QUESTION
Front
What is an unconformity?
Back
An unconformity is a surface that represents a gap in the geological record, where rock layers have been eroded or not deposited for a period of time.
Tags
NGSS.MS-ESS1-4
6.
FLASHCARD QUESTION
Front
What is the principle of Original Horizontality?
Back
The principle of Original Horizontality states that layers of sediment are originally deposited horizontally under the action of gravity.
7.
FLASHCARD QUESTION
Front
What is the principle of Lateral Continuity?
Back
The principle of Lateral Continuity states that layers of sediment initially extend laterally in all directions; they may be laterally continuous over great distances.
Tags
NGSS.MS-ESS1-4
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