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Pebbles, Sand, and Silt Students study the properties of rocks and soil. They group and seriate rocks on the basis of single, observable properties, learning simple ways by which earth materials can be organized.
Kit Information	Learning Resources
Unit Description Details the activity descriptions; concepts and themes; thinking processes; extensions; vocabulary; and assessment. (PDF file, requires Adobe Reader.) Delta Education (FOSS) Order Form FOSS Home	Earth Materials Curricular Companion Offering background content; kit enrichment; interdisciplinary connections; assessment strategies; and standards alignment. Kit Users and Classroom Experiences Find out what other teachers have done.
FOSS kits are developed by the Lawrence Hall of Science and published by Delta Education.

The Franklin Institute gratefully acknowledges the generous support of the National Science Foundation and Unisys Corporation.

The Franklin Institute is the Demonstration Site for the Eisenhower Mid-Atlantic Consortium, providing science and math resources for teachers.

This material is based upon work supported by the National Science Foundation under Grant No. 9819641.
Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.

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