Forming Fossils

By: Jami D.

What are fossils?

Fossils are impressions of animals or plants preserved in a rock for a long time the original object is removed or transferred.


Types of Fossils!

Process of Fossilization

Steps to fossilization

1. An organism dies

2. Buried by sediment like volcanic ash

3. The bones are protected by the sediment

4. More layers are placed on top

5. The layers put calcium in the bones

6. Movement by the earth or tectonic plates cause the fossil to rise.

7.Erosion happens

8. Erosion causes rock to fade away

9. Fossils come to surface

10. People find the fossil


Picture of Fossilization

Fossilization

fossilization

How do fossils help us organize geological timelines?

They tell us what organisms lived long ago. They show that evolution occurred. They show how living objects started as bacteria and came all the way to humans. They can tell when earth started and things that happened through out history.


5 Fun Facts!

1.Fossil means "something that has been dug up" in Latin

2.They are most common in sedimentary rock and are rare in igneous rock

3.Whole animals can stay trapped in sap, tar, or ice


4.A fossil isn't the actual bone it’s just a thing that was the same shape as the original it is just made up of minerals and other material that has hardened.

5.The oldest fossils are called Stromatolites!


Stromatolite

Citations

I used the power points on the student share!