Fossils and Geologic Time

The Law of Superposition helps scientists to determine what?

• The absolute age of rock layers

• The age of fossils

• The relative age of rock layers

• the super powers of squirrels

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

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

• A
• B
• C

In this rock layer diagram there are two unconformities, a fault at E and an intrusion at D. Which unconformity occurred first?  How do you know?

• Intrusion D occurred first because the instrusion has been moved by the fault.
• The fault occurred first because it has moved the intrusion D.
• Intrusion D occurred first because it can be seen in all of the rock layers.
• Fault E occurred first because it is a normal fault.

What is the absolute age of a rock?

• The age determined by the things around it.

• The age of an igneous rock.

• The age determined by radioactive dating.

• The time it takes for 1/2 of the radioactive atoms to decay in an element.

Which animal is the youngest in site 1?

• bird
• ammonite 
• shell

The ___ parts of organisms are more likely to become fossils.

• hard
• soft
• outer
• inner

Tags

NGSS.MS-LS4-1

What is a mass extinction?

• When all the species in a particular area on earth suddenly go extinct
• When multiple species from all over the earth suddenly go extinct 
• When one species goes extinct due to habitat changes
• When all life on earth is wiped out 

Tags

NGSS.HS-LS4-2

NGSS.HS-LS4-5

What event marks the end of each geologic area?

• 1 million years
• burst of new life forms
• mass extinction
• ice age

Tags

NGSS.HS-LS4-5

Which of the following species is extinct?

• woolly mammoth
• giant panda
• bald eagle
• green sea turtle

Tags

NGSS.MS-LS4-1