FOSSILS
As you can see this fossil is really old but if you dont know what a fossil is.???? well ill tell u a fossil is formed over millions of years. and it is when a larger mammel or human makes a print in the ground and causes the fossil to form into place in the rock which caused this little guy in the picture.
Fossil fuels
In this picture you can see the words oil and gas and oil and gas are formed by dead plants or dead forms of life they get compacted and create gas or oil. It takes millions of years for them to create gas and oil. Most fossil fuels have petrolium and iron and coal. fossil fuels are very rare out here people have to mine for them.