What is a fossil?

• The unpreserved remains of things

• Rocks

• The preserved remains or evidence of ancient living things

• Minerals

Tags

NGSS.MS-LS4-1

What type of rock will you most likely find fossils within?

• Sediment

• Igneous

• Metamorphic

• Sedimentary

Tags

NGSS.MS-ESS2-3

NGSS.MS-LS4-1

Why would it be less likely to find fossils in the other two types of rocks?

• The heat and pressure would destroy the once living remains

• They would work as well

• They erode quicker

• These rocks did not form at the same time as the organisms

Tags

NGSS.MS-LS4-1

What does the law of superposition tell us about the age of undisturbed layers of sedimentary rocks?

• Older is on top of younger

• Younger is on top of older

• All of the rocks are old

• All of the rocks are young

Tags

NGSS.MS-ESS1-4

What does the law of crosscutting tell us about the relative age of rocks?

• The rock of the formation is younger than the rock that cuts across

• Everything is the same thing

• The rock is missing a part of the geologic record

• The rock of the formation is older than the rock that cuts across

Tags

NGSS.MS-ESS1-4

An example of crosscutting would be an intrusive rock cutting through layers of sedimentary rock, what type of rock would be doing the crosscutting?

• Sedimentary

• Igneous

• Metamorphic

• Sediment

What is it called when scientists use fossils and rocks to estimate or compare the age of rocks and fossils found nearby?

• Rock Dating

• Relative-Age Dating

• Absolute-Age Dating

• Rock Birthdays

Tags

NGSS.MS-ESS1-4

What is it called when scientists use radiometric dating of fossils and rocks to determine their age?

• Rock Dating

• Relative-Age Dating

• Absolute-Age Dating

• Rock Birthdays

Which of the four options would be the best example of an index fossil? Explain your reasoning.

• A: fossil is abundant, found in multiple locations, and is only within one time period

• D: fossil is only within one time period

• B: fossil is found in multiple locations and across many time periods

• C: because it is not the oldest or youngest

Tags

NGSS.MS-ESS1-4

What layer is the oldest?

• A

• B

• C

• D

Tags

NGSS.MS-ESS1-4