THE GEOLOGIC TIME SCALE

_______________ is the long span of time that begins geologic time.

• Precambrian Time
• Cenozoic Time

Tags

NGSS.MS-ESS1-4

A unit of geologic time that subdivides eras

• period
• time span

Tags

NGSS.MS-ESS1-4

The Triassic Period, the Jurassic Period, and the Cretaceous Period occurred in what era?

• Cenozoic
• Mesozoic

Scientists chose where units of geologic time began on major changes in ______________ at certain times.

• life forms
• events

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-2

Eras are subdivided into units of geologic time called periods.

• True
• False

Tags

NGSS.MS-ESS1-4

___________ a record of the geologic events and the evolution of life forms as shown in the fossil record. 

• Eras
• Geologic Time Scale

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

Which of the following correctly lists the layers of rock in order from youngest to oldest?

• A, B, C, D, E
• B, C, D, E, A
• E, D, A, B, C
• C, B, A, D, E

Tags

NGSS.MS-ESS1-4

Which layer is a result of an igneous intrusion?

• B
• C
• D
• E

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

• the history of fossils only
• the history of rocks
• the history of rock layers and fossils
• geologist notes

Tags

NGSS.MS-ESS1-4

Preserved remains of plants and animals from the remote past are called?

• Sedimentary rocks

• Radioactive dating

• Decayed organisms

• Fossils

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2