Fossil Types- 8.E.2.1

True/False= Fossils are preserved remains or traces of an organism that lived in the past, usually 10,000 + years ago.

• True

• False

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NGSS.MS-LS4-1

When an organism's hard parts are replaced with minerals turning it into a rock/stone. Example above is permineralized wood.

• petrified (permineralized) fossil

• trace fossil

• preserved remains

• mold fossil

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NGSS.MS-LS4-1

Q. What type of fossil is an imprint in a rock?

• Cast

• Mold

• Trace

• Petrified

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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

• Trace

• Petrified

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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

• Petrified

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NGSS.MS-LS4-1

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

• Cast

• Mold

• Petrified

• Trace

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Shells and skeletons are typically fossilized in this fashion.

• Cast and mold

• Trace

• Carbonized or carbon film

• Petrified

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

• Archeologist

• geologist

• anthropologist

• paleontologist

Hardened tree sap is called.

• tar

• diamond

• amber

• syrup

Most fossils are found in __________ rock layers

• Dirt

• sedimentary

• metamorphic

• ice

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NGSS.MS-LS4-1

NGSS.MS-ESS2-3