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Interpreting Fossils

Pg. 46 of IAN. Interpreting Fossils. Objective:. To show how fossils can be used to provide information about past events. . Research:. Fossil:. The remains or evidence of a living thing. Relative dating: . Figuring out the order in which events occur by

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Interpreting Fossils

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  1. Pg. 46 of IAN Interpreting Fossils

  2. Objective: To show how fossils can be used to provide information about past events.

  3. Research: Fossil: The remains or evidence of a living thing. Relative dating: Figuring out the order in which events occur by comparing to other objects or events. No dates or ages.

  4. Superposition: The new layer of sediment forms on top of already formed layers. Absolute dating: Actual age of things based on radioactive elements in the rock.

  5. Information fossils give scientists: many a. Fossils indicate that have different life forms existed at different times throughout Earth’s history. b. When fossils are arranged according to age they show or that living things evolve change over time.

  6. Fossils indicate how earth’s • surface has evolved Example: If scientists find fossils of sea organisms in rocks high above sea level, then they can infer that the land was once covered by an ocean.

  7. d. Fossils give scientists clues to earth’s past climate. Example: Fossils of coral have been found in arctic regions. Coral is an animal that only lives in warm ocean areas. So, evidence of the presence of coral in artic regions indicates that the climate in the Arctic was once much warmer than it is today.

  8. Fossils also tell scientists about • the activities appearance and of extinct animals. or big heavy 1. They can tell how the animals were. Footprints provide a clue as to 2. how fast a particular animal could move. (Footprints close

  9. movement slower together show while footprints farther apart show movement) faster provide clues 3. Fossils of teeth food the about the kind of animal ate.

  10. Processing Activity (pg. 45 of IAN) Directions: (write these) Choose something from your notes (on page 46) to demonstrate.

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