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Elementary school
Upper elementary
Earth and space science
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Educational Level:
Upper elementary  
Instructional Strategies:
Generating and testing hypotheses  
Learning Time:
2 to 4 hours  
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Students will time the flow of water through soils with different properties and measure the amount of water held in these soils. They will also experiment with the filtering ability of soils by testing the pH of the water before and after it passes... (View More)