Lesson 4 Topic 3

Front

What type of rock do we usually find fossils in?

Back

Sedimentary rock.

Front

What are the different types of fossils?

Back

The different types of fossils include mold fossils, cast fossils, trace fossils, true form fossils, and petrified fossils.

Front

Which type of fossil shows the shape and structure of an organism?

Back

Body fossil.

Front

What does the LAW OF SUPERPOSITION state?

Back

In undisturbed layers of rock, the oldest layers are at the bottom and the youngest layers are at the top.

Front

What can the presence of fish fossils in land tell us?

Back

This land was once under the ocean.

Front

What is a mold fossil?

Back

A mold fossil is a hollow impression of an organism left in sediment.

Front

What is a cast fossil?

Back

A cast fossil is a solid copy of the shape of an organism.

Front

What are trace fossils?

Back

Trace fossils are evidence of the activity of organisms, such as footprints or burrows.

Front

What are true form fossils?

Back

True form fossils are actual remains of the organism, such as bones or shells.

Front

What are petrified fossils?

Back

Petrified fossils are formed when organic material is replaced with minerals, turning it into stone.