3. Fossils Day 2. EQ: How do fossils provide a record of Earth’s geologic history? Learning Target: I can identify the various processes by which a fossil can form. Learning Task: I will review key vocab related to fossil and their formation by completing a word sort.
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Welcome! Warm Up Thursday 4/3/14
Title Assignment #
Ice Cores 2
Ice Cores Webquest 3
Fossil Notes 4
Getting into the Fossil Record 5
Fossil Vocab 6
Fossil - evidence of past life preserved in rock.
Fossil record - the complete body of fossils that shows how species and ecosystems change over time.
Fossilized – the process of becoming a fossil
Trilobite: a marine organism that is an example of an index fossil
Index fossil – a fossil found in a narrow time range but distributed around the earth; used to date rock layers
Trace fossil – a fossilized mark that is formed in soft sediment by movement or actions an animal
Ice Core – a cylinder of ice removed from a glacier; contains trapped atmospheric gases to tell us about the climate in the past