Fossils Vocabulary

2. The age of a natural material in years.
4. A system for organizing Earths 4.6 billion year history.
5. A fossilization that happens when minerals transported by water fill in all the open spaces of an organism or organic tissue.
7. Ancient, layered rock formations that serve as some of the earliest evidence of life on Earth.
12. Extinct shelled cephalopods.
13. The process of converting organic material into a carbon-rich substance by heating it in the absence of oxygen.
15. A mold that recreates the shape of remains.
19. the study of fossilized remains of once living organisms.
20. Occurs when the organic matter is completely replaced by minerals and the fossil is turned to stone.

1. A fossilised faeces of animals that lived millions of years ago
3. Fungus that thrives in damp/wet places.
6. The approximate age of a specific rock layer.
8. Rocks formed from pre-existing pieces of rocks that were once living organisms.
9. Involves animals digging tunnels for shelter, food, or movement.
10. Fossilized plant sap that hardened over millions of years in sedimentary rocks.
11. Chemical replacement reactions, where one element takes the place of another in a compound.
14. A fossil that provides evidence of ancient plants or animals.
16. sediment layers are formed in order of formation so that the layer at the bottom is the oldest and the top layer is the youngest.
17. A fossil used to determine the relative age of a given rock.
18. Preserved remains or traces of past organisms.
21. A scientific resource that offers insights into the history and evolution of life on Earth.