Types of Fossils Review

I found a fossil that looked like footprints. What kind of fossil did I most likely find?

• Cast

• Trace

• Mold

• Igneous

The mineralized remains of organisms, showing how long-dead organisms lived and how their bodies were structured

• law of superposition

• sedimentary layers

• fossils

• petrification

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

A _______ is a hollow area in sediment in the shape of an organism.

• Mold

• Cast

• Shape

A ______ is a solid copy of the shape of an organism.

• Mold

• Cast

• Shape

What happens when minerals replace all or part of an organism and it "turns to stone"

• Rocks

• Petrified Fossils

• Sediment

Tags

NGSS.MS-LS4-1

_________ fossils show evidence of the activities of ancient organisms (footprints, tracks, burrows)

• Big

• Old

• Trace

Forms, when minerals soak into the buried remains, replacing the remains, and changing them into rock

• Carbonized fossil

• Petrified fossil

Forms when organisms or parts, like leaves, stems, flowers, fish, are pressed between layers of soft mud or clay that hardens squeezing almost all the decaying organism away leaving the carbon imprint in the rock

• Carbonized fossil

• Petrified fossil

Tags

NGSS.MS-LS4-1

remains, imprints, or traces of prehistoric organisms that can tell when and where organisms once lived and how they lived

• Extinction

• Fossils

Tags

NGSS.MS-LS4-1

forms when sediments bury an organism and the sediments change into rock; the organism decays leaving a cavity in the shape of the organism

• Mold fossil

• Cast fossil

• Preserved fossil

• Trace fossil

Tags

NGSS.MS-LS4-1