1 / 17

Academic Raceway Fossils

Fossils are the remains or evidence of once-living organisms, including bones, shells, and imprints. They provide valuable insights into the appearance and behavior of extinct species, as well as how living organisms and Earth's climate and surface have evolved over time. Fossils can be classified into categories such as trace fossils, molds, and casts. Preservation methods like tar pits and amber have allowed entire organisms to be found. This exploration of fossils reveals the diverse life forms that have existed throughout Earth's history.

amato
Download Presentation

Academic Raceway Fossils

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Academic Raceway Fossils Grade 6

  2. Fossils • Remains or evidence of a once living thing

  3. Examples of fossils • bones, shells, pollen grains, seeds, and imprints of an organism

  4. What do fossils tell us? • Appearance and activities of extinct organisms • How living organisms have changed over time • Earth's climate has changed

  5. Earth's surface has changed • Many different life forms have existed at different times in Earth's history

  6. Trace fossils • Marks or evidence of animals tracks, trails, footprints, or burrows The petrified lump of dinosaur dung is a "trace" fossil

  7. How fossils formed: • Molds • Cast

  8. Mold • empty spaces left when an organism decays

  9. Cast • Created by molds filled in by minerals which harden

  10. Tar pits, freezing, and amber • Preserves entire organism fossils

  11. Imprints • Thin materials like leaves and feathers left in soft sediment which harden

  12. Freezing • Preserved the woolly mammoth and furry rhinoceros A 350,000-year-old skeleton of a woolly mammoth from Steinheim, Germany November 2, 2001 - BBC

  13. Tar pits • Preserved bison, camels,giant ground sloths, wolves, vultures & saber-toothed cats

  14. Petrification • occurs when water containing minerals evaporates and the minerals replace the decaying material

  15. An example of petrification • Petrified wood

  16. amber • Hardened tree sap • Preserves whole insects

  17. What type(s) of fossils have the same shape as the original organism • Imprints, Molds, and Casts

More Related