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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.

Tags

NGSS.MS-ESS1-4

Front

How can you determine the relative age of rock layers?

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You can determine the relative age of rock layers by using the Law of Superposition, where the position of the layers indicates their age.

Tags

NGSS.MS-ESS1-4

Front

What does it mean if a rock layer contains fossils of recently evolved organisms?

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It means that the rock layer is younger compared to layers that contain older fossils.

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NGSS.MS-ESS1-4

NGSS.MS-LS4-1

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What is a fossil?

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A fossil is the preserved remains or traces of ancient organisms, often found in sedimentary rock.

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NGSS.MS-LS4-1

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Why is the Law of Superposition important in geology?

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It helps geologists understand the chronological order of rock formation and the history of the Earth.

Tags

NGSS.MS-ESS1-4

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What is the significance of the oldest rock layer in a sequence?

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The oldest rock layer provides insights into the earliest conditions and life forms on Earth.

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NGSS.MS-ESS1-4

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How do geologists use rock layers to study Earth's history?

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Geologists analyze the sequence and composition of rock layers to reconstruct past environments and events.

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NGSS.MS-ESS1-4

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What is an example of a sedimentary rock?

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Sandstone is an example of a sedimentary rock, formed from sand particles.

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NGSS.MS-ESS2-1

Front

What is the difference between relative age and absolute age?

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Relative age is the age of a rock layer compared to other layers, while absolute age is the actual age in years.

Tags

NGSS.MS-ESS1-4

Front

What does it mean if a rock layer is disturbed?

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If a rock layer is disturbed, it may not follow the Law of Superposition, making it difficult to determine its relative age.

Tags

NGSS.MS-ESS1-4