Law of superposition review

Law of superposition review

Assessment

Flashcard

Science

7th - 8th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What is the Law of Superposition?

Back

The Law 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.

2.

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. They are typically widespread and existed for a short duration.

3.

FLASHCARD QUESTION

Front

What are the two key traits of the best index fossils?

Back

The best index fossils are widespread geographically and have a short lifespan.

4.

FLASHCARD QUESTION

Front

Which fossil is considered the oldest among Trilobite, Ammonite, Crinoid, and Gastropod?

Back

Trilobite is considered the oldest fossil among these options.

5.

FLASHCARD QUESTION

Front

In the context of the Law of Superposition, what does 'youngest layer' refer to?

Back

The youngest layer refers to the topmost layer of rock in an undisturbed sequence, which is formed last.

6.

FLASHCARD QUESTION

Front

How can you determine the relative age of rock layers?

Back

You can determine the relative age of rock layers by using the Law of Superposition, examining the sequence of layers, and identifying index fossils.

7.

FLASHCARD QUESTION

Front

What is the significance of the order of rock layers?

Back

The order of rock layers helps geologists understand the history of the Earth, including the sequence of events and the relative ages of the rocks.

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