What is the most logical conclusion about a layer of rock near the top of a canyon?

The layers near the top are younger than layers below.

The layers near the top are older than layers below.

The top layer will have more fossils than layers below.

The top layer will have less fossils than layers below.

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.

Which explanation best describes why tropical plant fossils have been found on islands in the Arctic Ocean?

The island drifted from a tropical region to its present location.

Birds and insects carried seeds to the island.

Seeds of plants have been carried by ocean currents.

Spores of the plants were carried by air currents to the island.

The fossil record provides important scientific information such as......

What organisms have lived on Earth.

How organisms have changed over time

Which organisms have became extinct.

Geologists use radioactive dating to..

determine the relative ages of rock layers.

tell the difference between molds and casts.

tell where one soil horizon ends and the next one begins.

determine the absolute ages of rocks.

What are the oldest fossils and why?

A, B- because they are closest to the bottom

B, C- because they are closest to the top

They are all the same age- because they are all found on layer 2

A, B- because they are found closest to the top

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

The millions of fossils that scientists have collected are called

A really neat fossil collection

Why are similar fossils found all over the world?

The land masses were once connected

The animals swam to new parts of the world before going extinct

The organisms were transported to different areas of the world

What is chronological order?

The arrangement of things in the order which they occurred

When organisms are descended from a single ancestor

The quality or state of having many different forms

Layers of rock that are successfully deposited on top of each other and are distinguishable

When a species no longer exists

The quality or state of having many different forms

The arrangement of things in the order which they occurred

Layers of rock that are successfully deposited on top of each other and are distinguishable

What is represented by the picture?

How the continents are arranged today

The best index fossils have which two traits?

widespread geographically, short lifespan

widespread geographically, long lifespan

What is the best reason that fossil #4 is NOT a good index fossil?

it is not short-lived (in numerous layers)

Fossils and Earth's Structure

Authored by Charles Martinez

Science

8th Grade

NGSS covered

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36 questions

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MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Which best describes a fossil that helps determine the relative age of a rock layer?

trace fossil

index fossil

radioactive fossil

unconformity fossil

Tags

NGSS.MS-ESS1-4

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What role do faults play in the Law of Superposition?

Faults create new types of rock.

Faults are younger than the layers they cut through.

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

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Which statement best describes the Law of Superposition?

Each sedimentary layer of rock represents 1,000 years of Earth's age, much like the rings of a tree.

In undisturbed layers of sedimentary rocks, the upper rock layers are older than the lower rock layers.

In undisturbed layers of sedimentary rock, the lowest layers contain the older rocks.

Rocks that form near volcanoes are older than surrounding rock.

Tags

NGSS.MS-ESS1-4

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which time period on the chart was the longest?

Permian

Cambrian

Tags

NGSS.MS-ESS1-4

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which layer of rock is most likely the youngest?

Tags

NGSS.MS-ESS1-4

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Many marine fossils are found in what is now desert. Which hypothesis best explains this?

The desert was once an ocean

Marine organisms lived on land in the past

Tags

NGSS.MS-LS4-1

NGSS.MS-ESS2-3

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

the system of time measurement involving the formation of and changes to Earth

geology

biology

gotta stay FLY

geologic time scale

Tags

NGSS.MS-ESS1-4

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Fossils and Earth's Structure

Which best describes a fossil that helps determine the relative age of a rock layer?

What role do faults play in the Law of Superposition?

Which statement best describes the Law of Superposition?

Which time period on the chart was the longest?

Which layer of rock is most likely the youngest?

Many marine fossils are found in what is now desert. Which hypothesis best explains this?

the system of time measurement involving the formation of and changes to Earth

the action of water flow or wind that remove soil and rock from one location on the Earth's crust, then transport it to another location where it is deposited.

What is the most logical conclusion about a layer of rock near the top of a canyon?

The image shows fossils found in a section of sedimentary rock.In which layer are the oldest fossils found?

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