Geologic Time Scale

Which is the youngest rock layer?

• Siltstone

• Mudstone

• Limestone

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-3

The geologic time scale is a record of....

• the history of fossils only

• the history of rocks

• the history of rock layers and fossils

Tags

NGSS.MS-ESS1-4

When did this creature live?

• Triassic-Jurassic

• Eocene-Oligocene

• Cretaceous-Tertiary

Tags

NGSS.MS-LS4-1

Putting laundry in the basket over time best illustrates which rocking dating law?

• Radioactive dating.

• Law of superposition.

• Law of inclusion.

What is a fossil?

• Foot prints, burrows, or other impressions made by animals that give use clues to how they lived.

• When things die and their remains are buried.

• The preserved remains of an organism.

Tags

NGSS.MS-LS4-1

Which statement explains something that the fossil record indicates?

• The amount of water on Earth has decreased over time

• Mammals have always existed on Earth.

• Mass extinctions have occurred several times on Earth.

Tags

NGSS.MS-LS4-1

Study the timeline.

Based on fossil evidence, about how long ago did the first single-celled life form appear on Earth?

• 130 million years ago

• 1.5 billion years ago

• 4.1 billion years ago

Tags

NGSS.MS-LS4-1