Fossil Types

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

The fossil record provides evidence about the history of life on earth, past environments on earth, and ...

• how organisms decomposed

• how many offspring a particular organism had

• how organisms have changed over time

• exactly how many of each type of organism existed because everything that dies becomes a fossil

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NGSS.MS-LS4-1

A dead organism left out on earth's surface will be less likely to become a fossil than an organism that...

• gets eaten quickly

• is left in a cave

• is very large

• gets buried by sediment quickly (usually at the bottom of a water source)

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NGSS.MS-LS4-1

When an organism (usually plant life) becomes compressed between rocks leaving behind only a thin layer of carbon.

• trace fossil

• carbon film

• preserved remains

• petrified (permineralized) fossil

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

What type of fossil is shown here?

• preserved remains

• cast fossil

• carbon film

• trace fossil

What type of fossil is shown here found in hardened tree sap known as amber?

• mold fossil

• carbon film

• trace fossil

• preserved remains

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NGSS.MS-LS4-1

This is a recent discovery of an 18,000 year old wolf-pup found frozen in Siberia. What type of fossil does it represent?

• Cast fossil

• Mold fossil

• Preserved remains

• petrified (permineralized) fossil

Tags

NGSS.MS-LS4-1

Which type of fossil is shown on the LEFT side of this image?

• Mold fossll

• Cast fossil

• Trace fossil

• Preserved remains

Tags

NGSS.MS-LS4-1

Organisms like this saber tooth tiger have been extracted from the La Brea tar pit in Southern California. What type of fossil would you most likely find in a tar pit?

• Mold fossil

• Carbon Film

• Preserved remains

• Trace fossils

Tags

NGSS.MS-LS4-1