Activity (Hands-On)Grades 9 - 11
How Dense Are You Lab
Conducting soil bulk density tests in Dunsmore Canyon in Glendale, CACopyright US Geological Survey http://youthgo.gov/youth-profile/robert-leeper
Students determine the mass and volume of soil samples and calculate the density of the soils. They use this information to determine the suitability of the soil to support a building foundation.
Geotechnical engineers use measurements such as soil density to determine the constituents of soil. One major soil constituent is sand. Sand with a small of amount of silt has been found to offer the best foundation support for a house, building or road.
After this activity, students should be able to:
- Explain the soil density of sand, silt and clay.
- Develop proficiency in measuring volume and mass using a triple-beam balance and graduated cylinder.
- Calculate density.