Fossils

What is a fossil?

• rock was once at the bottom of the sea.

• An impression of an ancient organism.

• the past environment, where animals came from, and what they looked like.

• The imprint or remains of plants and animals that lived long ago.

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What are the three common types of fossils?

• Mold, cast, and trace

• liquid, cast and trace

• solid, mold and cast

• gas, cast and mold

What can fossils tell us about past animals and life?

• It cannot be replaced easily

• The imprint or remains of plants and animals that lived long ago

• An impression of an ancient organism

• Info about the past environment, where animals came from, and what they looked like

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A person that studies the forms of life existing in prehistoric times by investigating the fossils of plants, animals, and other organisms is known as a

• Investigator

• Paleontologist

• Researcher

• Pathologist

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___________ ___________ show evidence of the activity of ancient organisms, such as tracks or nests.

• dead fossils

• Mold fossils

• Cast fossils

• Trace fossils

What is a fossil mold?

• Yesterdays food

• Nonrenewable resources

• An impression of an ancient organism.

• Renewable resources

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Fossils are found mostly in which type of rock?

• Sedimentary

• Amber

• Solid

• Pewter

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In layers of rock and their fossils, which layer contains the oldest fossils?__

• bottom of the sea.

• The ones on the bottom

• desert

• plant

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A fossil that is formed by sediments filling up a mold is a(n)

• Cast fossil

• Mold fossil

• Trace fossil

• Amber

An animal dies and is buried under a mudslide. After its flesh decays, special conditions allow the bones to be replaced by minerals forming a copy of the bone that was once there. This type of fossil is a(n

• Old fossil

• Cast fossil

• Fossil fuel

• Mold fossil