Which of the following are conditions needed for fossil formation?

Layers of sediments build up over the organism

Exposed to the elements (water, wind, ice, sun)

Most fossilized structures are ______________________________.

Hard structures, such as bones and teeth.

Soft structures, such as skin and muscle.

Either hard or soft structures.

Able to be eaten by scavengers.

What do geologists look for in order to correlate rocks in different locations?

similar rock types and similar fossils

different rock types and similar fossils

many rock types and many fossils

similar rock types and lack of fossils

Which increases the likelihood that a dead organism will be fossilized?

presence of few hard body parts

What are the many division in the geologic time scale based on?

sudden changes in the fossil record

gradual changes in the fossil record

changes in the fossil record every million years

Mason and Clara are geologists who are digging for fossils. As they locate fossils, they map the location of them to help other geologists understand Earth’s history and how life on Earth has changed over time. Mason locates a gastropod and makes the claim, “ Gastropods are index fossils”. Clara disagrees with Mason. Which of the following best supports Clara’s disagreement?

If a fossil is to be considered an index fossil, the organism must have lived only a short period of time. Since the Gastropod lived a long period of time it is not an index fossil.

To be an index fossil, the fossil of the organism must be found in many rock layers. Since the Gastropod is not found in every layer, it cannot be an index fossil.

An index fossil must be found over a wide area of the earth. Since the Gastropod is widely spread, it cannot be an index fossil.

To be classified an index fossil, the fossil must be unique. Since the Gastropod is not unique, it cannot be an index fossil.

Science Test 4 (Q3)

Authored by Autumn James

Science

8th Grade

NGSS covered

Used 9+ times

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40 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A scientist who studies the Earth’s crust as well as the processes and history that shaped it

Chemist

Geologist

Paleontologist

Biologist

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-2

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A scientist that studies fossil remains found on the Earth’s surface in order to study primitive life forms such as: plants, animals, fungi, and bacteria

Chemist

Geologist

Paleontologist

Biologist

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A branch of geology dealing with the arrangement of sedimentary rock layers or strata

Law of Superpositoin

Strata

Chronology

Stratigraphy

Tags

NGSS.MS-ESS1-4

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are strata?

sedimentary rock layers

metamorphic rock layers

igneous rock layers

a special kind of fossil

Tags

NGSS.MS-ESS1-4

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which layer is the oldest?

mudstone

siltstone

limestone

sandstone

conglomerate

Tags

NGSS.MS-ESS1-4

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

History of life as documented by all fossils, preserved in sedimentary rock strata

Eon

Epoch

Era

Fossil Record

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Indicate to geologists the boundaries in geological time

Index Fossils

Fossils

Rock strata

Law of Superposition

Tags

NGSS.MS-ESS1-4

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Science Test 4 (Q3)

A scientist who studies the Earth’s crust as well as the processes and history that shaped it

A scientist that studies fossil remains found on the Earth’s surface in order to study primitive life forms such as: plants, animals, fungi, and bacteria

A branch of geology dealing with the arrangement of sedimentary rock layers or strata

What are strata?

Which layer is the oldest?

History of life as documented by all fossils, preserved in sedimentary rock strata

Indicate to geologists the boundaries in geological time

Which of the following is NOT a characteristic of index fossils?

Uses the decay of radioactive elements to find the exact age of a rock or fossil

The predictable time an element takes to decay

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