Students will observe wind erosion and how crop residue prevents erosion.Point out the three kinds of fields to the students. Do as much or as little instruction as needed to explain the pan with crop residue. Conservation tillage equipment and booklets from local farm implement dealers are effective teaching tools for this.Use the hair dryer on the open field. Collect the soil from the garbage bag.

2nd - 3rd Science 3 Views 1 Download
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Life Science
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