Age of Rocks

If a rock contains pieces of another rock, which is older?

• The rock containing the pieces

• The pieces within the rock

• Both are the same age

• It cannot be determined

What does the principle of superposition help geologists determine?

• The chemical composition of rocks

• The relative age of rock layers

• The absolute age of rocks

• The mineral content of rocks

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NGSS.MS-ESS1-4

Which principle is used to determine that if one geologic feature cuts across another, the feature that is cut is older?

• Superposition

• Original Horizontality

• Inclusions

• Cross-Cutting Relationships

What is the principle that suggests younger rock layers are deposited on top of older ones?

• Cross-Cutting Relationships

• Original Horizontality

• Superposition

• Lateral Continuity

Which "statements" give the right relative age of these layers of rocks ?

• Rock layer E is younger than B

• Rock layer E is Older than B

• Rock layer C is younger than B

• A is the most recent rock " Youngest"

Tags

NGSS.MS-ESS1-4

The oldest layer of rocks is at the ____________

• Top

• Middle

• Bottom

• under the sea

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NGSS.MS-ESS1-4

You will be lucky if you find an _________fossil in the layer of rock you are studying, because it can tell you the ______________of this layer of sedimentary rock and any other fossils in it.

• Magical

  Relative

• Magical

  Absolute

• Index

  Absolute

• Index

  relative

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NGSS.MS-ESS1-4

NGSS.MS-LS4-1

are found in one layer of rock all over the world over a short period of time, and they can help you decide the absolute age of the rock they are found in

• Indicator fossils

• Absolute fossils

• Index fossils

• marine fossils

The absolute age of igneous rocks is determined by________________

• Ruler dating

• Radiometric dating

• Radio waves

• Radioactive light

"Click on the image to see it more clearly" In an igneous rock layer that had Uranium (parent isotope) and lead ( daughter product ), you analyzed the ratio of the two atoms, you discovered that two half lives have passed, what would be the age of the igneous rock ? ( Note: half life of Uranium is 704 millions years)

• 1408 years

• 1408 million years

• 704 million years

• 500 million yearts

Tags

NGSS.MS-ESS1-4