Rock Layer and Fossils

• its history

• fossils of animals and plants from long ago

• ​Most FOSSILS are found in Sedimentary rocks.

Remains of plants or animals that lived long ago. This process of matter turning into a fossil is called FOSSILIZATION.

Erosion and earthquakes are natural forces that wear down layers of rock and exposes remains of the past.

Rock layers are like stacks of pancakes. The oldest pancake is on the bottom of the stack. The same is true for rocks. New rock is created on top of the older rocks.

Trilobites are marine animals that lived long before dinosaurs.

This image shows that that marine life once lived in this area. How do you know?

pay attention to your surroundings. You never know what you'll find.