Geologic History of Earth

System of time measurement involving the formation of and changes to Earth.

• ph Scale

• Geologic Time Scale

• trace fossil

• extinction

Tags

NGSS.MS-ESS1-4

Remains or impression of an organism preserved in petrified rock.

• era

• element

• fossil

• compound

Tags

NGSS.MS-LS4-1

Solid material that is moved and deposited in a new location

• atom

• sediment

• compound

• element

Fossil are found in this type of rock

• sedimentary

• metamorphic

• igneous

• peebles

Tags

NGSS.MS-LS4-1

When an organism rots or becomes decomposed

• physical property

• reproducing

• decays

• physical change

Tags

NGSS.MS-LS2-3

Impression left behind

• acid

• smear

• imprint

• base

Breakdown of rocks at the Earth's surface, by the action of rainwater

• freezing

• melting

• rusting

• weathering

Tags

NGSS.MS-ESS2-2

Fossil that forms when minerals solidify into rock around the shape of the original organism, leaving a cavity.

• preserved fossil

• trace fossil

• cast fossil

• mold fossil

Fossil that forms when a mold is filled with sediment and hardens into the shape of that organism.

• cast fossil

• mold fossil

• preserved fossil

• index fossil

Fossil that is completely turned into stone.

• petrified fossil

• trace fossil

• index fossil

• mold fossil