Types of fossils

This type of fossil forms when sediments bury an organism and then sediments change into rock; the organism decays leaving a cavity in the shape of the organism.

• mold
• cast
• petrified
• trace

Tags

NGSS.MS-LS4-1

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

• mold
• cast
• trace
• preserved

Tags

NGSS.MS-LS4-1

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

• mold
• cast
• petrified
• preserved

Tags

NGSS.3-LS4-1

NGSS.4-ESS1-1

Remains of animals can be preserved by preventing them from decaying. What substances might help preserve parts or a whole animal

• tar, amber, ice
• ice, carbonization, trace
• rock, amber, ice
• tar, carbonization, rock

Tags

NGSS.2-PS1-1

This type of scientist finds, preserves, and interprets fossils remains.

• archeologist
• paleontologist
• geologist
• anthropologist

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

Hardened tree sap is called

• petrified

• amber

• tar

• syrup

Most fossils are found in __________ rock layers

• metamorphic
• sedimentary
• igneous

Tags

NGSS.MS-LS4-1

NGSS.MS-ESS2-3

What type of fossil is pictured? 

• cast
• petrified fossil
• preserved remains
• trace fossil

Tags

NGSS.MS-LS4-1

remains of once-living things that have been preserved

• fossil

• bone

• index

• petrified

What type of fossil is shown in the photo?

• cast

• mold

• trace

• carbon film

Tags

NGSS.MS-LS4-1