Geologic Time

Which layer is the oldest?

• A
• B
• C
• D

The principle that a sedimentary rock layer is older than the layers above it and younger than the layers below it if the layers are not disturbed is called ...

• unconformity
• law of crosscutting relationship
• law of superposition
• varve

Tags

NGSS.MS-ESS1-4

How does absolute age differ from relative age?

• only absolute dating indicates which rock is older than another
• only absolute dating finds the age in years
• only relative dating finds the age in years

According to the law of superposition, which layer is the youngest?

• A
• B
• C

Tags

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

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

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

Tags

NGSS.MS-ESS1-4

The age of a rock given as the number of years since the rock formed.

• relative age
• half-life
• absolute age
• radioactive decay

Tags

NGSS.HS-ESS1-5

About how old are the oldest fossils of living organisms?

• 3.5 billion years old
• 3.5 million years old
• 4.6 billion years old
• 6,000 years old

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

The age of a rock compared to the ages of other rocks.

• relative age
• half-life
• absolute age
• radioactive decay

Tags

NGSS.MS-ESS1-4

The age of a rock given as the number of years since the rock formed.

• relative age
• half-life
• absolute age
• radioactive decay