Soil and Density Lab
Soil Porosity & Density
Objective: To determine if the porosity of soil is related to the density.
Hypothesis: I think that that the porosity of soil is related to the density because the higher the density of the sand the lower the porosity of the sand, which are both componets for the water to rise.
Materials:
• Sand and Loam samples
• 2 large containers
• Plastic cups
• Water
• Scale
Procedure:
Loam
1) The loam without the water was fresh , it had different shades of black, and there were also organic materials in it such as small pebbles, roots, and leaves.
2) Mass = 51.1 grams
3) Volume = 200 mL
4) Combined Mass = 172.3 grams
5) Total Volume of water added = 250 mL
Sand
1) The sand without the water was very grain and dry, it had different shades of brown, and there were also organic materials in it such as small pebbles and roots.
2) Mass = 51.2 grams
3) Volume = 100 mL
4) Combined Mass = 145.3 grams
5) Total Volume of water added =310 mL
Observation
Loam: The loam without the water was fresh , it had different shades of black, and there were also organic materials in it such as small pebbles, roots, and leaves. When we added the water to the loam some of the dirt disolved, and went to the bottom. I think this happend because the loam had a higher porosity so it was less dense making the loam disolve.
Sand:The sand without the water was very grain and dry, it had different shades of brown, and there were also organic materials in it such as small pebbles and roots. When we put the water in the sand, some of the sand was floating, I think this occured because the porosity of the sand is low, so when the pores get filled the particles absorb the extra water making it more dense, so it will float.
Analysis
1) The sand mixture did not rise to 400 mL because the porosity of the sand is low, and the sand is dense so when you pour the water in the container there is less pore space between the
Objective: To determine if the porosity of soil is related to the density.
Hypothesis: I think that that the porosity of soil is related to the density because the higher the density of the sand the lower the porosity of the sand, which are both componets for the water to rise.
Materials:
• Sand and Loam samples
• 2 large containers
• Plastic cups
• Water
• Scale
Procedure:
Loam
1) The loam without the water was fresh , it had different shades of black, and there were also organic materials in it such as small pebbles, roots, and leaves.
2) Mass = 51.1 grams
3) Volume = 200 mL
4) Combined Mass = 172.3 grams
5) Total Volume of water added = 250 mL
Sand
1) The sand without the water was very grain and dry, it had different shades of brown, and there were also organic materials in it such as small pebbles and roots.
2) Mass = 51.2 grams
3) Volume = 100 mL
4) Combined Mass = 145.3 grams
5) Total Volume of water added =310 mL
Observation
Loam: The loam without the water was fresh , it had different shades of black, and there were also organic materials in it such as small pebbles, roots, and leaves. When we added the water to the loam some of the dirt disolved, and went to the bottom. I think this happend because the loam had a higher porosity so it was less dense making the loam disolve.
Sand:The sand without the water was very grain and dry, it had different shades of brown, and there were also organic materials in it such as small pebbles and roots. When we put the water in the sand, some of the sand was floating, I think this occured because the porosity of the sand is low, so when the pores get filled the particles absorb the extra water making it more dense, so it will float.
Analysis
1) The sand mixture did not rise to 400 mL because the porosity of the sand is low, and the sand is dense so when you pour the water in the container there is less pore space between the