Geologic Time

What two pieces of evidence are used to divide and classify the geological time scale?

• Living organisms

• rock strata or layers

• DNA

• fossils

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-3

Select all of the characteristics of index fossils:

• easily recognizable

• abundant (lots of them)

• wide geographic distribution (found lots of places around the world)

• live a long time (in MANY rock layers up and down)

Which Era was mainly dominated by dinosaurs?

• Cenozoic

• Jurassic

• Mesozoic

• Paleozoic

Tags

NGSS.MS-LS4-1

A comet or asteroid impact on the earth is a frequently suggested cause for many of the mass extinctions. For which of the major mass extinctions does the most evidence exist that this was the main trigger for the event?

• End Permian

• Cretaceous (KT Event)

• Late Devonian

• Triassic

Tags

NGSS.MS-ESS3-2

NGSS.MS-LS4-1

When did Pangea break apart?

• Cenozoic Era

• Mesozoic Era

• Paleozoic Era

• Precambrian Era

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

When did the first humans appear?

• Cenozoic Era

• Mesozoic Era

• Paleozoic Era

• Proterozoic Eon

Tags

NGSS.MS-ESS1-4

All non-avian dinosaurs went extinct during the...

• Cretaceous - Tertiary Extinction

• Late Devonian Extinction

• Holocene Extinction

• Permian-Triassic Extinction

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

NGSS.MS-LS4-2

There have been 5 mass extinctions in Earth's history. Which of the following mass extinctions occurred first?

• End Permian

• Triassic

• Late Devonian

• End Ordovician

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

What is referred to as the Law of Superposition?

• Age of rocks, with the oldest on the top and youngest on the bottom.

• The different colors of rocks.

• The different layers of the rocks.

• Age of Rocks with the youngest on the top and the oldest on the bottom layer

Tags

NGSS.MS-ESS1-4

The Cambrian Explosion refers to

• the sudden appearance of many different types of lifeforms in the fossil record

• another name for the "Big Bang"

• a volcanic eruption in Eastern Europe

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2