Fossils and The Law of Superposition. Liz LaRosa 5 th Grade Science http://www.middleschoolscience.com 2009 This PPT was created with the information from the FOSREC Activity “Who’s on First?” and “ Fossil Inferences ” by UEN. Fossils and Superposition. What is a fossil?
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Liz LaRosa 5th Grade Science http://www.middleschoolscience.com 2009
This PPT was created with the information from the FOSREC Activity “Who’s on First?” and “Fossil Inferences” by UEN.
The trace or remains of an organism that lived long ago, most commonly preserved in sedimentary rock
Younger rocks lie above older rocks if the layers have not been disturbed
around the world, ex Trilobites
This is one possible way to arrange the cards.
What letter is the oldest?
What letter is the youngest?
What letter showed up the most?
Which letters only showed up once?
Which letters could be index fossils?
How did you know which was older: “M” or “X”?
Teacher Note: I replaced the letters with nonsense letters b/c spelling the word “organism” was too easy for my 5th graders