NGSS.MS-ESS1-4

_{Which rock layer in the diagram seems to be the oldest?}

• F
• E
• B
• A

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NGSS.MS-ESS1-4

Which layer is oldest?

• A
• W
• G
• Z

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NGSS.MS-ESS1-4

Analyze the seashell found in the white layer.  Which statement is true of the rock layer that contains this fossil?

• It could also contain a fossil from the bottom layer.
• It is older than the layers below it.
• It is younger than the layers above it.
• It is older than the layers above it.

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NGSS.MS-ESS1-4

Relative dating of rock layers tells us that the deeper we dig, _______.

• the younger the rocks get
• the smellier the rocks get
• the harder the rocks get
• the older the rocks get

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NGSS.MS-ESS1-4

According to the law of superposition, the oldest fossils are found 

• At the top of the rock layers
• Near the bottom of the rock layers
• In the middle of the rock layers
• Somewhat near the surface

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NGSS.MS-ESS1-4

Where would the oldest rock be found?

• L
• M
• N
• O

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NGSS.MS-ESS1-4

A geologist is studying three layers of sedimentary rock in an area. The layers have not shifted from their original positions. The geologist records the relative ages of the rocks. What did the geologist use to determine the relative ages of the rocks?

• Radioactive dating

• Mineral content

• Absolute dating

• The Law of Superposition

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NGSS.MS-ESS1-4

According to the diagram, which of the following is true?

• A is the oldest

• B is the youngest

• E is the oldest

• A is the oldest

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NGSS.MS-ESS1-4

What is the correct order of the rock layers from oldest to youngest?

• F, E, C, B, A, D
• A, B, C, D, E, F
• F, E, D, C, B, A
• D, F, E, C, B, A

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NGSS.MS-ESS1-4

Scientists use radiometric dating (radioactive decay) to measure...

• relative time (dating)

• absolute time (dating)

• half-lives

• time of day

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NGSS.MS-ESS1-4