1. Fossils!

2. Essential Question What are fossils? How do fossils form?
What are the different types of fossils?

3. Fossils Are preserved remains or traces of living things.
Provide evidence of how life has changed over time.

4. How fossils form
Most form when living things die and are buried by sediments
Sediments slowly harden into rock and preserve the shapes of the organisms

5. Sedimentary rock
Where fossils are usually found

6. Found
Most found in animals and plants that lived in or near quiet water such as swamps, lakes, or shallow seas.
Dies = hardens and only hard parts leave fossils

7. Found
Fossils found in rock include molds and casts, petrified fossils, carbon films, and trace fossils.
Others preserved in tar, amber or ice

8. Mold A fossil imprint made by the outside of a dead plant or animal
Forms when hard part such as a shell is buried in sediment

9. Cast
A fossil formed when sediments or minerals fill a mold; it takes on the same outside shape as the living thing that shaped the mold

10. Amber
Hard translucent fossilized resin; typically yellowish in color

11. Trace fossils Provides evidence of the activities of ancient organism.
Ex: fossil footprints, trails, and burrows

12. True Fossil
Fossils of the actual animal or animal part

13. Paleontologists
Collect and classify fossils

14. Fossil record Provides evidence about the history of life on earth
Shows that groups of organisms have changed over time
Shows fossils occur in a particular order

15. Extinct
No longer exists and will never live on earth again