Tuesday, December 7, 2010

Sedimentary Rocks

First, the children "eroded" the rocks
They were left with graham cracker sediments!


Finally, they applied pressure to form their sediments into rocks!
Second grade geologists are exploring the different ways that rocks are formed.  This week the students are studying sedimentary rocks.  The children acted out the formation of sedimentary rocks with graham crackers!  First, they eroded the "cracker rocks" into sediments.  Then, the children applied pressure to form a "Graham Rock!"

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