Geologic Ages

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

Which type of dating method can be used on rock layers by applying the Law of Superposition?

• relative dating
• absolute dating
• radioactive dating
• radiometric dating

Tags

NGSS.MS-ESS1-4

What element is usually used to date fossils?

• uranium-235
• carbon-14
• mercury-203
• thorium-234

The age of a rock compared to the ages of other rocks is the rock's

• absolute age
• geologic age
• sedimentary age
• relative age

What is absolute age?

• comparing a rock layer to other rocks

• a measure of the radioactive decay of isotopes

• measuring the dimensions of a rock

• comparing the rocks to the fossils in the area

Fossil remains of a trilobite are most likely to be found in which type of rock?

• igneous
• volcanic
• sedimentary
• metamorphic

Tags

NGSS.MS-LS4-1

Many fossils of large amphibians were found in an area that is currently barren desert. Which is most likely true?

• The climate of the area was once much wetter than it is now.
• Amphibians were once better at surviving in dry environments.
• The amphibians migrated there after a catastrophic event destroyed their habitats.
• The amphibians are not native to the area and their bones were brought there by other animals.

Tags

NGSS.MS-LS4-1

NGSS.MS-LS2-4

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

• A
• B
• C

Tags

NGSS.MS-ESS1-4

According to the diagram, what is the most recent event?

• B

• I

• R

• H

Tags

NGSS.MS-ESS1-4

A geologist examines a rock outcrop obtained from a region with the rock layers labeled from 1 to 6.In what order were the rock layers likely deposited (laid down) over time?

• 1, 2, 3, 4, 5, 6

• 5, 4, 3, 2, 1, 6

• 5, 4, 3, 6, 2, 1

• 6, 5, 4, 3, 2, 1

Tags

NGSS.MS-ESS1-4