Fossil Layers

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

• The age of one rock layer or fossil compared to another.

• 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

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

What are fossils that are abundant, easily recognizable, short lived, and widespread called?

• Preserved fossils

• Index fossils

• Imprints

• Radioactive dating

The diagram shows layers of sedimentary rock and examples of the fossils each layer contains, Which layer contains the oldest fossils? 

• Layer 2

• Layer 4

• Layer 1

• Layer 3

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

Which fossil layer is the youngest? 

• Layer A

• Layer B

• Layer C

• Layer D

Tags

NGSS.MS-ESS1-4

Scientist study the ____________________ to learn about the history of life, past environments on Earth, and how different groups of organisms have changed over time.

• fossil record

• animal record

• historical record

• Earth record

Tags

NGSS.MS-LS4-1

The hardened remains of a living thing that died long ago.

• fossil

• extinct

• endangered

• minerals

Tags

NGSS.MS-LS4-1

If a scientist found a fish fossil in the desert, what can they infer?

• An animal ate the fish.

• The water covered the area long ago.

• Today's fish looks the same

• The fish is endangered.

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

NGSS.MS-LS4-1

Fossil of thin layer of carbon atoms and molecules 

• original remains 

• carbon film

• trace fossil

Formed when original material in skeletal remains are replaced by minerals 

• original remains 

• fossil

• permineralized remains