Earth’s History

Earth’s History

Assessment

Flashcard

Science

8th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

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15 questions

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1.

FLASHCARD QUESTION

Front

What is the law of crosscutting relationships?

Back

The law of crosscutting relationships states that a geological feature (like a fault or igneous intrusion) that cuts through another feature is younger than the feature it cuts.

2.

FLASHCARD QUESTION

Front

What is an ice core?

Back

An ice core is a cylindrical sample of ice drilled from an ice sheet or glacier, which contains layers that provide information about past climate conditions.

3.

FLASHCARD QUESTION

Front

What is radiometric dating?

Back

Radiometric dating is a method used to determine the age of rocks and fossils by measuring the decay of radioactive isotopes.

4.

FLASHCARD QUESTION

Front

What does the fossil record indicate about the evolution of species?

Back

The fossil record shows that many animals in the fossil record are ancestors of modern animals, indicating evolutionary changes over time.

5.

FLASHCARD QUESTION

Front

How old is Earth according to current radiometric dating?

Back

Earth is approximately 4.6 billion years old.

6.

FLASHCARD QUESTION

Front

What is the principle of superposition?

Back

The principle of superposition states that in undisturbed sedimentary rock layers, the oldest layers are at the bottom and the youngest layers are at the top.

7.

FLASHCARD QUESTION

Front

What is coprolite?

Back

Coprolite is fossilized dung that provides information about the diet and behavior of ancient organisms.

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