What is the Law of Superposition?
History of Planet Earth pre-test

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Science
•
6th - 10th Grade
•
Hard
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15 questions
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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 newer layers are on top.
2.
FLASHCARD QUESTION
Front
What does comparative anatomy provide evidence for?
Back
Comparative anatomy provides evidence for the evolution of organisms, indicating that some organisms come from the same ancestor.
3.
FLASHCARD QUESTION
Front
Which fossil is considered the best index fossil?
Back
The trilobite is considered the best index fossil because it was widespread and existed for a relatively short period of time.
4.
FLASHCARD QUESTION
Front
What does the Law of Cross-Cutting state about faults?
Back
The Law of Cross-Cutting states that a fault is younger than the rocks it cuts through.
5.
FLASHCARD QUESTION
Front
Is evolution a theory of slow change over long periods of time?
Back
False. Evolution is a theory that describes how species change over time, but it can occur rapidly in some cases.
6.
FLASHCARD QUESTION
Front
What is an index fossil?
Back
An index fossil is a fossil that is used to define and identify a particular time period in the geological time scale.
7.
FLASHCARD QUESTION
Front
What is the significance of the Law of Inclusions?
Back
The Law of Inclusions states that any rock fragments that are included in another rock must be older than the rock they are included in.
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