Unit 1 Lesson 5 Review

Front

What part of an organism is most likely to become a fossil?

Back

Tooth

Front

What can fossils tell us about dinosaurs?

Back

They can tell us how the dinosaur moved.

Front

What is an example of a whole body fossil?

Back

An insect trapped in amber.

Front

What does it mean if a species is extinct?

Back

There are no living members of this species.

Front

What happens when an insect gets stuck in resin and it hardens into amber?

Back

It becomes a whole body fossil.

Front

What is a fossil?

Back

A fossil is the remains or traces of a plant or animal that lived long ago.

Front

What is amber?

Back

Amber is fossilized tree resin that can trap insects.

Front

What is a trace fossil?

Back

A trace fossil is a record of the activity of an organism, like footprints.

Front

What is a mold fossil?

Back

A mold fossil is an impression of an organism left in rock.

Front

What is a cast fossil?

Back

A cast fossil is formed when a mold is filled with minerals.