Add a set volume of water (e.g., 400 mL) to a known volume of sediment. Step 2: Measure the "surface water" remaining on top.
Porosity (%)=(Volume of Water in SedimentTotal Sediment Volume)×100Porosity open paren % close paren equals open paren the fraction with numerator Volume of Water in Sediment and denominator Total Sediment Volume end-fraction close paren cross 100 3. Results & Discussion Sediment Type Grain Size Permeability Porosity % Sand Silt Key Findings student-exploration-porosity-gizmo-answers
The experiment utilizes the Porosity Gizmo to test three sediment types: Fragments > 2.0 mm. Sand: Grains between 0.0625 mm and 2.0 mm. Silt: Grains between 0.0039 mm and 0.0625 mm. Activity A: Testing Permeability Step 1: Reset containers and turn on the macroscopic view. Add a set volume of water (e
💡 Large grains mean large pores, which lead to higher permeability , but not necessarily higher porosity . If you'd like to refine this paper, let me know: Results & Discussion Sediment Type Grain Size Permeability
Surprisingly, uniform spheres of different sizes (like the marble vs. small beads example) often have the same total porosity. The volume of empty space remains constant if the grains are well-sorted, even if the individual holes are smaller.
The percentage of a material’s total volume that is empty space (pores).