Name: Zin Peterson Date: 10/29 School: GHS Facilitator: Ms. Adams 6.05 Soils Types Lab Hypothesis: Which material do you think will have the highest permeability (fastest time)? Pea gravel Which material do you think will have the lowest permeability (slowest time)? Soil Which material do you think will have the highest porosity (largest spaces)? Pea gravel Which material do you think will have the lowest porosity (smallest spaces)? Soil Record your data for the experiment. Calculate the percent porosity and record. Use this formula. % porosity = volume of port space (amount of water) x 100 Volume of material Sediment Total Volume (ml) Volume left in cylinder (ml) Pore Space Volume (total volume – volume left) % porosity Permeability (seconds for water to pass through) Example 100 ml 65 ml 100 – 65 = 35 35/100 x 100 = 35% Sand 100 ml 59ml 100-59=41 41/100x100=41
You've reached the end of your free preview.
Want to read both pages?
- Summer '17
- J Watts