Earth History assessment 1

Earth History assessment 1

Assessment

Flashcard

Science

10th Grade

Hard

NGSS
MS-LS4-1, MS-ESS1-4, HS-PS1-8

+3

Standards-aligned

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15 questions

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1.

FLASHCARD QUESTION

Front

What is an index fossil?

Back

An index fossil is a fossil that is used to define and identify a particular time period in the geologic time scale. It is typically widespread, abundant, and existed for a relatively short duration.

Tags

NGSS.MS-ESS1-4

2.

FLASHCARD QUESTION

Front

What geologic period is associated with trilobite fossils?

Back

Trilobite fossils are primarily associated with the Paleozoic Era, particularly the Cambrian to the Permian periods.

Tags

NGSS.MS-LS4-1

3.

FLASHCARD QUESTION

Front

What does the presence of trilobite fossils indicate about past environments?

Back

The presence of trilobite fossils indicates that the area was once covered by shallow marine environments, as trilobites were marine organisms.

Tags

NGSS.MS-LS4-1

4.

FLASHCARD QUESTION

Front

What is the significance of the Devonian period in Earth history?

Back

The Devonian period, often referred to as the 'Age of Fishes', is significant for the diversification of fish and the first appearance of amphibians.

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

5.

FLASHCARD QUESTION

Front

What is a half-life in radioactive decay?

Back

A half-life is the time required for half of the radioactive atoms in a sample to decay into a stable form.

Tags

NGSS.HS-PS1-8

6.

FLASHCARD QUESTION

Front

How can the rate of decay of a radioactive isotope be represented?

Back

The rate of decay can be represented graphically, showing the ratio of remaining radioactive atoms to the decay products over successive half-lives.

Tags

NGSS.HS-PS1-8

7.

FLASHCARD QUESTION

Front

What is a fault in geological terms?

Back

A fault is a fracture or zone of fractures in the Earth's crust along which movement has occurred.

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