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Coal

What do these rocks have in common? What do you see that makes you say so? (Be as specific and as scientific as you can.). Coal. Fossil. Limestone. Coral. Still needs revision. Get some coral and coal for the kids to look at. Horn Coral in with fossils. “Biotic” Rocks.

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Coal

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  1. What do these rocks have in common?What do you see that makes you say so?(Be as specific and as scientific as you can.) Coal Fossil Limestone Coral

  2. Still needs revision. • Get some coral and coal for the kids to look at. • Horn Coral in with fossils “Biotic” Rocks The Organisms’ Chapter of the Rock Story

  3. Brain Pop: Fossils

  4. Fossils: • Fossils can tell us about the history of life on earth. • Fossils can tell us about the climate on earth. • Fossils can help us date rock layers.

  5. Types of Fossils - Body Lightning Shell in rock Frozen Amber (tree sap) Peat Bog Bones in rock

  6. Types of Fossils - Trace Gastroliths (stones to aid digestion) Coprolite (poo) Bite/gnaw marks Tracks Burrows

  7. Types of Fossils - Mold

  8. Types of Fossils - Cast Pompeii, Italy Natural vs. Artificial?

  9. Brain Pop: Fossil Fuels/Fossils

  10. Coal: • Plants that live in swampy/marshy habitats die and turn into peat. • Peat is compressed over the course of millions of years and turned into coal.

  11. Brain Pop: Coral

  12. Coral: • Coral produces a hard structure that serves as a sort of skeleton. When each generation of corals die their “skeleton” is left behind, building up very slowly year after year. • Coral Castle in Miami, FL

  13. Coral reefs are home to 25% of all marine species

  14. Coral often grow up around a volcano as it erodes.

  15. Atoll

  16. Limestone: • Small marine invertebrates (salt water animals without backbones) use a good deal of calcium in their shells. • The animal dies and the soft parts rot away but the shells remain and build up layer after layer. • The shells are compressed and turned into limestone.

  17. The Top Layer of Everest is LimestoneWhat does that tell you?

  18. Limestone is made of dead coral and other sea shells

  19. These Horn Coral Fossils are Limestone What we think the living organism may have looked like.

  20. Fossils: • Rock layers can help date fossils and fossils can help date rock layers. • Archaeopteryx is a very famous fossil.

  21. Geologic Time Scale

  22. Using Fossils to Date Rock Layers:

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