Fossils ore organisms that were one part of something this is how the process goes. The animal dies and over time it is covered with dirt and mud when this happens the bones get replaced with minerals over time but this is a really long process and can take years. Do you know how amber is made? Sap from a tree falls really slowly and over time it hardens and after a really long time it becomes a mineral. and if a mosquito gets stuck in the amber the mosquito will die and will be stuck when the sap hardens and that mosquito sometimes has dinosaur blood in it. Scientists found a mosquito in some amber, that is probably the closest they got to making a Dino. Petrified wood is made from wood falling into mud and slowly being replaced by minerals and over a while of thousands of years it turns into petrified wood.

 

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