Fossils lesson 1

Fossils: Different types of fossils.

What are fossils?

A fossil is a preserved animal or plant which died millions of years ago that humans can't keep track of. Fossils are divided into two groups: body fossils and trace fossils.

What is a body fossil?

Body fossils preserves one or more parts of an animal's body. This image shows a picture of a triceratops body fossil.

What is a trace fossil?

Trace fossils preserves the remains of how an animal lives. the remains can be footprints and dung or others. This is a trace fossils of a dinosaurs footprints.

From hollow to touchable

There are different fossils and two different ways we see it: cast and mold fossils.

What is a mold fossil?

A mold fossil is a hollow shape like if you press your finger into a piece of clay the shape of you finger is left. This is a mold fossil of a trilobite.

What is a cast fossil?

A cast fossil A cast fossil forms when minerals are deposited in a hollow space inside a mold. this is a cast fossil of a shell when an animal once lived in here.