This type of fossil is formed from minerals filling and hardening in the empty space.

cast

A scientist who studies fossils

paleontologist

This type of fossil gives clues about a living things activities like footprints, tracks, eggshells etc.

trace

This is a timeline of Earth's history.

Geologic Time Scale

This is when a species no longer exists.

extinct

This type of fossil is a space in the shape of a living thing

mold

When animals die, the first part of fossilization is

the soft parts decay

The remains or mark of animal or plant that lived long ago

fossil

This type of fossil preserves the whole body by being stuck in sap.

amber

These come from remains of organisms that lived long ago such as coal, natural gas and oil.

fossil fuels

How long does it take to an organism to become a fossil?

thousands of years

Sand, mud and bits of shells and rocks are called

sediments