What are fossils

The remains or traces of organism that had lived a long time ago in a rock . They come in different shapes , sizes, and colors.

What type of rock are they found in ?

Most fossils are usually found in sedimentary rocks.The original organisms were trapped in sediments .

How are fossils formed ?

Fossils are formed in multiple way , but there usually formed when a organism dies and the soft tissue decomposes . Then sediments pile on top of them and then compaction occurs. to form a fossils .

example of how they are formed

1 : trace of organisms : when a animal leaves a foot print in the ground it can harden to a rock.

2: coal: a million years ago in swamps, when ferns and plants die they form in layers . At the bottom of swamp water and dirt began` to pile on top of dead plants an other remains .