8.1 - Fossil Evidence of Change

When was the Earth formed?

• 3.5 million years ago

• 4.6 billion years ago

• 3.5 billion years ago

• 4.6 million years ago

Tags

NGSS.HS-ESS1-6

T/F: Earth’s early surface had many volcanoes

• true

• false

Tags

NGSS.MS-ESS2-2

Gases that likely made up the atmosphere of very early Earth (first 500 million to 1 billion years) are those that were _____

• produced by the first life forms

• expelled by volcanoes

• produced from asteroid impacts

Tags

NGSS.HS-ESS1-6

Minerals in the oldest known rocks suggest that the early atmosphere had ________ free oxygen.

• a lot of

• little to no

Earliest clues about life on Earth date back to about _________

• 3.5 billion years ago

• 4.6 million years ago

• 4.6 billion years ago

• 3.5 million years ago

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

A ______ is any preserved evidence of an organism

• fossil

• tectonic plate

• spherule

• tectite

Tags

NGSS.MS-LS4-1

___% of the species that have ever lived are now extinct, but only a small percentage remain as fossils

• 50

• 33

• 99

• 66

Tags

NGSS.MS-LS4-1

T/F: Most organisms fossilize.

• true

• false

Answer explanation

Most organisms decompose before they have a chance to become fossilized.

Tags

NGSS.MS-LS4-1

Nearly all fossils are formed in ______ rock.

• metamorphic

• igneous

• sedimentary

Tags

NGSS.MS-LS4-1

________ are scientists who study fossils. They can learn about diet, environment, and ancestry of an organism.

• botanists

• paleontologists

• biogeologists

• astonomists

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2