Fossil Review

Organisms with hard parts like bones, shells, or teeth are more likely to become fossilized.

• True

• False

Tags

NGSS.MS-LS4-1

Organisms with soft parts like jellyfish, worms and most insects are less likely to become fossilized because their soft tissues decompose quickly.

• True

• False

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

NAME THAT FOSSIL:

This fossil forms when sediments bury an organism and the sediments change into rock. Then, the organism decays leaving a cavity (hollow area) in the shape of the organism.

• mold fossil

• cast fossil

• preserved fossil

• trace fossils

NAME THAT FOSSIL:

This fossil forms when minerals soak into the buried remains, replacing the remains, and changing them into rock.

• carbonized film fossil

• cast fossil

• preserved fossil

• petrified fossils

NAME THAT FOSSIL:

This fossil forms when a mold is filled with sand or mud that hardens into the shape of the organism.

• mold fossil

• cast fossil

• preserved fossil

• petrified fossils

NAME THAT FOSSIL:

This fossil forms when the mud or sand hardens to stone where evidence of an organism is left behind such as footprints, coprolites (feces), egg shells, gastroliths (stomach stones), regurgitaliths (vomit), nests, trails, burrows, etc...)

• mold fossil

• cast fossil

• trace fossil

• carbonized film fossil

NAME THAT FOSSIL:

This fossil forms when organisms 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.

• preserved fossil

• petrified fossil

• trace fossil

• carbonized film fossil

NAME THAT FOSSIL:

This type of fossilization keeps the fossil remains partially or full intact through 1 of 3 materials: ice, tar, or resin that turns into amber.

• preserved fossil

• petrified fossil

• trace fossil

• carbonized film fossil

Fossils are typically found in which of the following? Select all that apply

• igneous rock

• metamorphic rock

• sedimentary rock

• preserved in ice, tar, or amber

Tags

NGSS.MS-LS4-1

Which of the following increase the organism's chance of becoming a fossil?

• being buried slowly

• being buried quickly

• having soft body parts

• having hard body parts