Earth History Review 2022-23

Earth History Review 2022-23

Assessment

Flashcard

Science, Biology

8th Grade

Hard

Created by

Wayground Content

FREE Resource

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15 questions

Show all answers

1.

FLASHCARD QUESTION

Front

What is the process by which fossil bones of a dinosaur are formed?

Back

The dinosaur was covered in sediment.

2.

FLASHCARD QUESTION

Front

According to the law of __________, in horizontal sedimentary rock layers the oldest layer is at the bottom and the youngest layer is at the top.

Back

Superposition

3.

FLASHCARD QUESTION

Front

What is it called when a variation in a species has a favorable trait that helps it survive, while the less favorable variation dies out?

Back

Natural selection.

4.

FLASHCARD QUESTION

Front

What is absolute age?

Back

The exact age of a rock or fossil.

5.

FLASHCARD QUESTION

Front

What is an adaptation?

Back

A trait that helps an organism survive its environment.

6.

FLASHCARD QUESTION

Front

What is the significance of sediment in fossil formation?

Back

Sediment can cover and preserve remains, leading to fossilization.

7.

FLASHCARD QUESTION

Front

Define 'index fossil'.

Back

A fossil that is used to define and identify a particular time period.

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