Geologic Time and Relative Dating

By which method have scientists determined that the Earth is about 4.5 billion years old?

• plate tectonics

• relative dating

• radioactive dating

• law of superposition

Tags

NGSS.HS-ESS1-6

The bottom layer of rock...

• is the oldest

• is the youngest

• has the most fossils

Tags

NGSS.MS-ESS1-4

Dinosaur fossils are often found in layers of

• sedimentary rock

• igneous rock

• metamorphic rock

Tags

NGSS.MS-ESS2-3

Fossils of species that existed for short periods and were widespread

• uniformitarianism

• cyanobacteria

• index fossils

Saying you are older than your sister is an example of?

• Absolute age dating

• Relative age dating

• Fossils

• Radioactive dating

What does absolute age tell us about a rock layer or fossil?

• The 'exact' age of a fossil determined by radiometric dating

• The relative age of a fossil determined by radiometric dating

• Younger rock layers sit on top of older rock layers

• Older rock layers sit on top of younger rock layers

Tags

NGSS.MS-ESS1-4

States that younger rocks lie above older rocks if the layers have not been disturbed

• Law of crosscutting

• Law of superposition

• Relative Dating

• Unconformity

How does the law of crosscutting explain the age of a fault?

• The fault is younger than the rocks above it.

• The fault is younger than the rocks it cuts through.

• The fault is older than the rocks above it.

• The fault is older than the rocks it cuts through.

Tags

NGSS.MS-ESS1-4

What are the relative ages of the features in order from oldest to youngest?

• Limestone, Basalt, Fault, Siltstone

• Siltstone, Fault, Basalt, Limestone

• Limestone, Fault, Basalt, Siltstone

• Limestone, Siltstone, Fault, Basalt

Tags

NGSS.MS-ESS1-4

Which of the following is the oldest?

• Layer L

• Intrusion D

• Intrusion H

• Layer E

Tags

NGSS.MS-ESS1-4