THIS DAY IN SCIENCE: Email in the 18th century: The Optical Telegraph in 1791

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Characteristics of Soil Activity

Characteristics of Soil Activity

  In this activity, students will observe a variety of soil types and describe the characteristics of these soils.  Soil is made up of air, water, recycling organisms, rock particles, and humus.  Different types of soils are defined by the different proportions...
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