Fossilization, Superposition

Fossilization, Superposition

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 fossilization?

Back

Fossilization is the process by which remains of living organisms are preserved in sedimentary rock over time, often through mineralization or other means.

2.

FLASHCARD QUESTION

Front

What is a fossil?

Back

A fossil is the preserved or mineralized remains (teeth, bones, etc.) or imprint of an organism that lived long ago.

3.

FLASHCARD QUESTION

Front

What does the principle of superposition state?

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.

4.

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 geological time scale, often because it was widespread and existed for a relatively short duration.

5.

FLASHCARD QUESTION

Front

How do fossils help in understanding Earth's history?

Back

Fossils provide evidence of past life forms, their environments, and the changes that have occurred over time, helping scientists reconstruct Earth's history.

6.

FLASHCARD QUESTION

Front

What are the conditions necessary for fossilization?

Back

Conditions necessary for fossilization include rapid burial, low oxygen levels, and the presence of hard parts like bones or shells.

7.

FLASHCARD QUESTION

Front

What is petrification?

Back

Petrification is a type of fossilization where organic material is replaced with minerals, turning it into stone-like structures.

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