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Fossils Lesson 8. 6 ways an organism can turn into fossils: Unaltered preservation( like insects or plant parts trapped in amber, a hardened form of tree.

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Presentation on theme: "Fossils Lesson 8. 6 ways an organism can turn into fossils: Unaltered preservation( like insects or plant parts trapped in amber, a hardened form of tree."— Presentation transcript:

1 Fossils Lesson 8

2 6 ways an organism can turn into fossils: Unaltered preservation( like insects or plant parts trapped in amber, a hardened form of tree sap) Unaltered preservation( like insects or plant parts trapped in amber, a hardened form of tree sap) Permineralization-petrification(in which rock like minerals seep in slowly and replace the original organic tissues) Permineralization-petrification(in which rock like minerals seep in slowly and replace the original organic tissues) Replacement- an organisms hard parts are replaced by other minerals. Replacement- an organisms hard parts are replaced by other minerals.

3 6 ways continued… Carbonization- coalification Carbonization- coalification Recystalization-hard parts either revert to more stable minerals or small crystals turn into larger crystals Recystalization-hard parts either revert to more stable minerals or small crystals turn into larger crystals Authigenic Preservation-Molds and casts of organisms that have been destroyed or dissolved (Enchanted, n.d. p.2). Authigenic Preservation-Molds and casts of organisms that have been destroyed or dissolved (Enchanted, n.d. p.2).

4 Computer Lab: Every group will have a certain way that organisms turn into fossils. Every group will have a certain way that organisms turn into fossils. Please think of a way to present your material to the rest of class. Be creative! Please think of a way to present your material to the rest of class. Be creative! How do fossils relate to history? How do fossils relate to history? What do you personally think about your way? What do you personally think about your way?


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