My objective for this lab was to take various soil samples and recreate mass wasting with the various samples. This will allow me to better understand how mass wasting works in our environment. I preformed this lab by pouring samples onto trays and tilted the trays to recreate a landslide. I kept notes and created tables for each step of my experiment. The results from my experiment was that saturated samples hold together better and also require more of a slope in order to get them sliding.
Clay soil sample
Potting soil sample
Home soil sample
100 mL beaker
3 cardboard …show more content…
Once I soaked the samples I covered to opening of the cup with my hand and poured out all the excess water. I then slowly poured my first sample on the top tray but thin time not in the middle more like a third of the way from the edge. And again I slowly started to tilt the tray upwards. Once I saw movement I stopped measured the angle of the tray and recorded what I observed. I then began to lift the tray again and once I saw the saturated sample move again I measured the angle of the tray and recorded what I saw. I then tilted the tray until all the sample had slid off the edge of off. Again I measured the angle at which this occurred and recorded what is saw. Repeat these steps for all …show more content…
The gravel had the worst cone it didn’t stay together and spread way out.
Even though the clay didn’t have the best cone I was able to tilt the tray the highest with the clay.
The saturated samples both held together better and also allowed the tray to have a steeper angle before sliding off.
When the clay was saturated it became real sticky and even stuck to the tray. Others formed into big clumps, while the gravel resembled its dry version except for all the scattering.
Sources of Error
When I first made my trays the cardboard wasn’t cut very straight and the top tray wouldn’t sit flat. I then remade them so all three were even. I also think that bigger trays might have worked better the clay really makes a mess.
Plummer, Carlson, Hammersley (2013). Physical Geology (14th ed.). New York, NY: