Front

Where are most fossils formed?

Back

In sedimentary rock, because being buried in sediment helps to form fossils.

Front

What is a fossil?

Back

The remains of an organism studied by scientists.

Front

How does an organism become fossilized in amber?

Back

A mosquito is caught in tree resin that hardens into rock.

Front

Which of the following is NOT a reason why studying fossils is important?

Back

They allow scientists to bring extinct organisms back to life.

Front

What can a boy conclude about the habitat of a fossilized insect he found in the desert?

Back

The area must have once had lots of grass because of the characteristics of the fossil.

Front

What type of rock are fossils usually found in?

Back

Sedimentary rock.

Front

What do fossils tell us about ancient organisms?

Back

They show scientists what ancient organisms looked like.

Front

Why is it important to study how organisms have changed over time?

Back

It helps scientists understand evolution and the history of life on Earth.

Front

What is amber?

Back

Fossilized tree resin that can preserve organisms.

Front

What does it mean if a species is extinct?

Back

It means that the species no longer exists.