Fossils

What are fossils?

Fossils are the remains of a prehistoric organism preserved in petrified form or as a mold in cast in rock.

What type of rock are they found in?

types of rock that fossils are usually in are metamorphic rocks (rocks that are formed from sedimentary rocks under heat & pressure) or igneous rocks (the type of rock formed by molten lava that are later cooled down.)

How are fossils formed?

Fossils are formed in many different ways but most are formed when a plant or animal dies in a watery environment and is buried in mud & slit.Soft tissue quickly decomposes leaving the hard bones or shells behind.Over time sediment build over the top and the plant or animal hardens into rock.

Example of how fossils are formed.

A animal can die and be buried in mud , water , and sand. tissue starts to decompose leaving the bones and shell.over time sediments build over the plant or animal and it hardens into rock and remember that that's only ONE of the ways they can be formed