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029-Cobbles, Quartzite w/ Scolithus linearis Grades 6-12 $9.00
Mystery includes rock, fossil, or mineral sample and Mystery questions with teaching instructions.

SAMPLE:
-- A rounded stream cobble from the Potomac Conglomerate (Cretaceous, Eastern Maryland and Washington, DC) clearly showing the tubes of Scolithus linearis

TEACHING OBJECTIVES:
  • -- To introduce the concept that rivers carry sediment long distances
  • -- To introduce fossil worm tubes that are hundreds of millions of years old
  • -- To give young students the opportunity to hold several concepts in mind at the same time
  • -- To introduce the concept that old sediment can be moved and redeposited

GRADES 6-12
Scolithus.JPG.web
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Ruth Deike
Rock Detective Geoscience Education
395 Deer Run Drive
Nellysford , VA 96080

Phone: 434-263-3737

EMAIL:

 

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