Chp. 15 - Geologic Time Scale

Which period are we currently in?

• Quaternary
• Holocene
• Jurassic
• Tertiary

Tags

NGSS.MS-ESS1-4

Which era is the longest?

• Cenozoic
• Cambrian
• Precambrian
• Phanerozoic

Tags

NGSS.MS-ESS1-4

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

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

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

The end of an era, and the end of life for groups of organisms, is called?

• Death

• Mass extinction

• Transition

• Turning point

Tags

NGSS.MS-LS4-1

Which is the youngest rock layer?

• Siltstone

• Conglomerate

• Mudstone

• Limestone

Tags

NGSS.MS-ESS1-4

Which rock layer is oldest from Site 1?

• G

• B

• A

• E

Tags

NGSS.MS-ESS1-4

Which of the fossils is the oldest?

• Dinosaur

• Bird

• Shell

• Ammonite

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1