What is the Law of Superposition?
Law of Superposition/Index Fossils

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Science
•
6th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
The Law of Superposition states that in undisturbed rock layers, the oldest layers are at the bottom and the youngest layers are at the top.
2.
FLASHCARD QUESTION
Front
What are index fossils?
Back
Index fossils are fossils of organisms that were widespread but only existed for a short period of geological time, used to date and correlate the age of rock layers.
3.
FLASHCARD QUESTION
Front
How do index fossils help in determining relative age?
Back
Index fossils help determine relative age by allowing scientists to correlate rock layers from different locations based on the presence of the same fossil.
4.
FLASHCARD QUESTION
Front
What does it mean if a fossil is described as 'extinct'?
Back
A fossil is described as 'extinct' if the organism it represents no longer exists on Earth.
5.
FLASHCARD QUESTION
Front
Where are the oldest fossils typically found according to the Law of Superposition?
Back
The oldest fossils are typically found near the bottom of the rock layers.
6.
FLASHCARD QUESTION
Front
What is the significance of correlating rock layers?
Back
Correlating rock layers helps geologists understand the geological history and the relative ages of different rock formations.
7.
FLASHCARD QUESTION
Front
What type of rock is typically associated with fossils?
Back
Sedimentary rock is typically associated with fossils because it forms in layers and can preserve the remains of organisms.
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