Fossils and Geologic Time Scale

Fossils are ______ remains of ancient organisms.

• preserved

• old

Tags

NGSS.MS-LS4-1

Catastrophism is the idea that quick,_____ events change the Earth.

• ocean

• violent

Tags

NGSS.MS-ESS3-2

Examples of a trace fossil are tracks, nests, and __________.

• footprint

• mold

Tags

NGSS.MS-ESS2-3

NGSS.MS-LS4-1

Uniformitarianism is the principle that states geological events ( earthquakes,volcanoes ) have occurred in the ____ and will occur in the present and future.

• past

• core

Tags

NGSS.HS-ESS1-5

In a rock layer, the oldest rocks are at the ____________.

• bottom

• top

Tags

NGSS.MS-ESS1-4

A fault in a rock layer is younger than the layers it ______ through.

• sets

• cuts.

Tags

NGSS.MS-ESS1-4

Index fossils are found in _______ layers.

• rock

• soil

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-3

Index fossils help identify the ________ of rock layers.

• age

• match

Tags

NGSS.MS-ESS1-4

Geologists study the relative _____ of rock layers.

• look

• age

Tags

NGSS.MS-ESS1-4

These fossils are found in rock layers and identify the relative age of the layer.

• Index

• Preserved

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-3