Thursday, March 8, 2012

Pebbles, Sand, and Silt

Our class is beginning an earth science unit.  We've started a study of rock, one of the most important earth materials.  Our investigations will center on the properties and uses of rock in many of its particle sizes--pebbles, gravel, sand, silt, and clay.  The children will be working extensively with materials, observing, comparing, and communicating what they learn through their firsthand experiences with earth materials.

Soon your child may ask for help finding a rock or two to contribute to our class rock collection.  A rock from your yard or neighborhood is fine.  As our study continues, your first grader will be learning more and more about rocks.  Try to find opportunities to talk with your child about sand, gravel, and soil and ways people use these materials in construction (asphalt, concrete, bricks, mortar, etc.) and landscaping.  This is an engaging theme for a family outing.

We're looking forward to lots of discoveries and new experiences as we explore the earth materials that can be found all around us.  If you have any questions or comments, or have expertise you would like to share with the class, please contact me.

--Taken from the FOSS Pebbles, Sand, and Silt Module
The Regents of the University of California

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