08 Chapter 14.1 History of life and fossils Bio IB

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

• It is older than the layers above it.

• It is older than the layers below it.

• It is younger than the layers above it.

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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

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NGSS.MS-ESS1-4

_{Which rock layer in the diagram seems to be the oldest?}

• F
• E
• B
• A

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NGSS.MS-ESS1-4

According to scientific measurements, approximately how old is the Earth?

• 4,600 years

• 4.6 million years

• 4.6 billion years

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NGSS.HS-ESS1-6

If you were examining sedimentary rock and saw fossils of many types of organisms in lower layers of rock and found almost no species in areas above a certain point, what would you conclude? Choose the best answer.

• There was a major change on Earth that caused a mass extinction

• All of the species moved to a new habitat

• The dinosaurs caused all of the other species to go extinct

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NGSS.MS-LS4-1

Put these species in order according to the order in which they appear in the fossil record.

• prokaryotic cells, eukaryotic cells, sponges, fish, amphibians, reptiles

• eukaryotic cells, prokaryotic cells, sponges, amphibians, fish, reptiles

• prokaryotic cells, eukaryotic cells, fish, reptiles, amphibians, sponges

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NGSS.MS-LS4-1

What is a half life?

• The time it takes for 1/2 of the atoms of a radioactive element to change into another element.

• About 50 years since humans can live to 100 years

• 1000 years

• The time is takes for all of the carbon-14 atoms to disappear

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NGSS.HS-PS1-8

Many fossils of large amphibians (related to frogs and salamanders) 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.

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NGSS.MS-LS4-1

NGSS.MS-ESS2-2

What is relative dating?

• Dating rocks based on their position in layers of sedimentary rock

• Taking your cousin to Burger King

• Dating rocks based on their category

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NGSS.MS-ESS1-4

Which geological era is being shown in the image?

• Precambrian

• Paleozoic

• Mesozoic

• Cenozoic

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NGSS.MS-ESS1-4