Geologic Time

Used to describe the timing and relationships between events that have occurred throughout Earth's history

• absolute age

• Law of Superposition

• classification

• geologic time scale

Tags

NGSS.MS-ESS1-4

A geological time that is a subdivision of an eon. It is divided into periods. Examples are Cenozoic, Mesozoic, and Paleonzoic

• eon

• era

• period

• epoch

Tags

NGSS.MS-ESS1-4

A time scale- 2 or more of these form an era (it is shorter than an era). It cross-references rocks and geological events.

• stratigraphy

• eon

• era

• period

Tags

NGSS.MS-ESS1-4

The most recent era of geologic time, from 65 million years ago to the present.

• Paleozoic

• Triassic

• Cambrian

• Cenozoic

Tags

NGSS.MS-ESS1-4

A preserved remain of an organism that gives us a history of the Earth.

• geologist

• stratigraphy

• fossil

• epoch

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

NGSS.MS-ESS2-3

States that in any undisturbed sequence of rocks deposited in layers, the youngest layer is on top and the oldest on bottom.

• stratigraphy

• classification

• Law of Superposition

• paleontology

Tags

NGSS.MS-ESS1-4

A person who studies fossils.

• paleontologist

• dinosaurologist

• neurologist

• oceanologist

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

The branch of geology concerned with the order and relative position of strata and their relationship to the geological time scale.

• hyrology

• climatology

• petrology

• stratigraphy

Tags

NGSS.MS-ESS1-4

Noting or pertaining to the earliest era of earth history, ending 570 million years ago, during which the earth's crust formed and life first appeared in the seas.

• cenozoic time

• mesozoic time

• paleozoic time

• precambrian time

How old do Paleontologists believe the Earth is?

• 2015 years old
• 3.6 billion years old
• 4.6 billion years old
• 4.6 million years old

Tags

NGSS.MS-ESS1-4