A Geologist Hiking Through the Woods in Ohio Finds Rocks Containing Fossils

Traces or remains of organisms that lived long ago

• Fossil

• Remnant

• Shell

• Rocks

Tags

NGSS.MS-LS4-1

How do most fossils form?

• An insect becomes trapped in amber.

• An entire organism becomes frozen in ice.

• A dead organism becomes buried in sediment.

• A dead organism becomes buried in tar.

The diagram shows fossils in different rock layers. Which of these statements about the age of these fossils is most likely correct?

• Fossil A and C are the same age
  
• Fossil B is older than fossil C
• Fossils A is older than fossil B
• Fossil D is older than fossil C

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

A geologist hiking through the woods in Ohio finds rocks containing fossils in a stream bank. The fossils look similar to animals currently living in the ocean. Which conclusion should the geologist make based on the discovery of these fossils?

• Fossils washed upstream from the ocean
• Animals that live in the stream today lived in the ocean long ago.
• The area of the woods and stream was an ocean long ago.
• The area with the stream will become part of the ocean in the future.

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

NGSS.MS-LS4-1

NGSS.MS-LS4-2

If scientists found this fossil, what could they infer?

• what fish are like today

• that this fish lacked oxygen

• that water once covered the area where this fossil was found

Tags

NGSS.MS-LS4-1

Which fossil is the oldest?

• a

• b

• c

• d

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

Which fossil is the youngest?

• a

• b

• c

• d

Tags

NGSS.MS-ESS1-4

Analyze the seashell found in the white layer.  Which statement is true of the rock layer that contains this fossil?

• It could also contain a fossil from the bottom layer.
• It is older than the layers below it.
• It is younger than the layers above it.
• It is older than the layers above it.

Tags

NGSS.MS-ESS1-4

How do geologists use relative dating?

• Placing rocks in order from youngest to oldest
• Placing rocks in order by minerals they contain
• Classifying rocks by different textures
• Classifying rocks by different isotopes

Tags

NGSS.MS-ESS1-4

Relative dating of rock layers tells us that the deeper we dig, _______.

• the younger the rocks get
• the smellier the rocks get
• the harder the rocks get
• the older the rocks get

Tags

NGSS.MS-ESS1-4