NGSS.MS-ESS1-4

How old do Paleontologists believe the Earth is?

• 2015 years old
• 3.6 billion years old
• 4.6 billion years old
• 4.6 million years old

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Which of the following is the oldest?

• Layer L
• Intrusion D
• Intrusion H
• Layer E

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Where can the oldest layer be found?

• The top layer
• The middle layer
• They are all the same age
• The bottom layer

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The number of years that have passed since the rock formed is the rock's

• relative age
• law of superposition
• absolute age
• index fossil

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The index fossil of a type of trilobite is discovered in layer A of a set of rock layers found at three different sites of a field investigation. Which conclusion can be made about the rocks in layer A at all three sites?

• The rocks are all different ages
• The rocks are all about the same age
• The rocks were formed from melting magma
• The rocks were formed during a catastrophic event

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Scientist think the Earth is ___ years old.

• 4,500
• 45,000
• 4.5 million
• 4.5 billion

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Principle that states in a sequence of undisturbed rocks, the oldest rocks are on the bottom and the rocks become progressively younger toward the top 

• superposition 
• uniformitarianism
• half-life

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

• F
• E
• B
• A

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the succession of eras, periods, and epochs as considered in historical geology; the period of time covering the formation and development of the Earth, from about 4.6 billion years ago to teach today

• paltenlogy

• geologic timescale

• eras and ions

• triassic period

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NGSS.MS-ESS1-4

The Earth is estimated to be how old?

• 4.6 Million years old
• 6,000 years old
• 4.6 Billion years old
• Who knows

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