The Geologic Time Scale is a record of what?

the known history of rocks and fossils

a list of every living thing ever

What do scientists think may have caused dinosaurs to become extinct?

climate change due to the asteroid hitting earth

The law of superposition states that in undisturbed rock sequence:

older layers are on the bottom, younger layers are on top

older layers are on top, younger layers are on the bottom

What role do faults play in the Law of Superposition?

Faults are younger than the layers they cut through.

Faults create new types of rock.

Faults are the same age as the layers they cut through.

Faults are older than the layers they cut through.

The Law of Superposition helps scientists to determine what?

The relative age of rock layers

The absolute age of rock layers

According to the law of superposition, the oldest fossils are found

Near the bottom of the rock layers

In the middle of the rock layers

Geologists studied fossils taken from the top of a mountain. The chart lists several fossils taken from this location as well as their original habitat. What can be concluded based on the fossil evidence?

The mountain was covered by water at some point in the past.

The mountain climate was once much warmer than it is today.

The mountain climate was once much colder than it is today.

The elevation in the area was much higher at some point in the past.

The time line shows the evolution of life forms during the geologic time scale. Which statement is supported by the time line?

Insects and amphibians appeared approximately 325 million years ago.

Dinosaurs became extinct 150 million years ago.

Birds evolved approximately 275 million years ago.

Animals started inhabiting land approximately 300 million years ago.

How are fossils created?

Traces of organisms get turned into stone.

Dead organisms are quickly buried for millions of years.

Which of the following is a requirement of index fossils?

lived only for a short time but was found all over the world

Lived over a vast time period but found only in one location

Not a prevalent species at any time

If scientists found this fossil, what could they infer?

that water once covered the area

what kind of animal ate this fish

Which parts of an organism are more likely to fossilize?

the hard parts - bones, shells, stems

all parts can become fossilized easily because the organism becomes buried by sediments

Fossils of fish are found under land where cows now live. What does this tell you?

this land was once under the ocean

the fish were dropped their by flying birds

farmers fed the fish to the cows

Why is the fossil record incomplete?

fossils get eroded away over time

most organisms never became fossils

scavengers and decomposers eat them too quickly

8.E.2- Earth's History

Authored by Sylvia Dinkins

Science

8th Grade

NGSS covered

Used 89+ times

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38 questions

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MULTIPLE CHOICE QUESTION

45 sec • 1 pt

What is the longest unit of time?

Eon

Era

Period

Epoch

Tags

NGSS.MS-ESS1-4

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

What Era are we currently in?

Paleozoic

Mesozoic

Cenozoic

Triassic

Tags

NGSS.MS-ESS1-4

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Which Era was dominated by dinosaurs?

Paleozoic

Mesozoic

Cenozoic

Cambrian

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Which segment of time is the smallest?

Eon

Era

Period

Epoch

Tags

NGSS.MS-ESS1-4

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

What era was the age of fish?

Precambrian

Palezoic

Mesozoic

Cenozoic

Tags

NGSS.MS-LS4-1

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

What type of rock do fossils form in?

Igneous

Sedimentary

Metamorphic

Classic

Tags

NGSS.MS-ESS2-3

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

An event in time when large amounts of animals and plants die off

geologic time

precambrian

period

mass extinction

Tags

NGSS.MS-LS4-1

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8.E.2- Earth's History

What is the longest unit of time?

What Era are we currently in?

Which Era was dominated by dinosaurs?

Which segment of time is the smallest?

What era was the age of fish?

What type of rock do fossils form in?

An event in time when large amounts of animals and plants die off

What is the Cenozoic Era also known as ?

How old do Paleontologists believe the Earth is?

The Geologic Time Scale is a record of what?

Access all questions and much more by creating a free account

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Popular Resources on Wayground

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