fossil is the remain of dead plants or animals.They used to be alive.Fossil is animal that lived many years.Fossil is dead.
What type of rock are they found in?
They can be found in mountian.They are mostly found under land and in soil.They can be found underground.
How are they formed?
The animal or plant die first.Next they decay.Then they are buried under ground.Over time the dead animal or plant start get smaller. They stay underground a long time.Some part of the plant start to get smaller.That is how the fossil are formed.
Example of how the fossil got in the rock
The plant got eaten.Next it decay over time.Then it get cover by rocks.After it get cover by rocks, the dead plant levas a mark in the rock.