Chapter 6 Lesson 1 Fossils

A hollow area in sediment in the

shape of an organism or part of an

organism is

• a cast

• a mold

• a trace fossil

• a petrified fossil

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A solid copy of the shape of an

organism is

• a mold

• a carbon film

• a cast

• a fossil record

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What type of fossils provide evidence

of the activities of ancient organisms?

• molds and casts

• petrified fossils

• trace fossils

• carbon films

Which of the following substances is

not able to preserve entire organisms?

• sticky tar

• water

• amber

• ice

Most fossils form when living things die and are buried by ________________ that hardens into rock over time.

• water

• plants

• sediment

• ice

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A(n) _________________is an extremely thin coating of

carbon on rock.

• mold

• carbon film

• cast

• petrified

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The term _____________ is used to identify a scientist who studies fossils.

• geologist

• biologist

• anthropologist

• paleontologist

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Scientists study the _____________ to learn about the

history of life, past environments on Earth, and how different groups of organisms have changed over time.

• fossil record

• moon

• ocean floor

• atmosphere

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________________ is the gradual change in living things over long periods.

• Mutation

• Extinction

• Evolution

• Life cycle

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An organism is ____________ if it no longer exists and will never live again on Earth.

• evolved

• extinct

• adapting

• changing

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