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In the Soil Analysis Forensics Laboratory Kit, examine soils microscopically, conduct pH and phosphate tests and then collect data from a soil density profile demonstration.

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Mud collected from the bottom of a suspect’s shoe might link that person to the crime scene. How do forensic scientists match soil samples? Let your students conduct the same tests used by forensic scientists and determine which suspect is guilty of being at the crime scene. Students will examine soils microscopically, conduct pH and phosphate tests and then collect data from a soil density profile demonstration. Students will quickly learn that no two soil samples are exactly alike. The soil profile analysis is completed as a class demonstration. Includes soil testing materials, density gradient solutions and detailed teacher materials.

Complete for 30 students working in pairs.

Correlation to Next Generation Science Standards (NGSS)

Science & Engineering Practices

Planning and carrying out investigations
Constructing explanations and designing solutions
Analyzing and interpreting data
Obtaining, evaluation, and communicating information
Developing and using models

Disciplinary Core Ideas

MS-ESS3.C: Human Impacts on Earth Systems
MS-LS2.B: Cycle of Matter and Energy Transfer in Ecosystems
HS-ESS2.A: Earth’s Materials and Systems
HS-ESS3.A: Natural Resources

Crosscutting Concepts

Cause and effect
Patterns
Stability and change

Performance Expectations

MS-ESS2-2: Construct an explanation based on evidence for how geoscience processes have changed Earth’s surface at varying time and spatial scales.
MS-ESS3-1: Construct a scientific explanation based on evidence for how the uneven distributions of Earth’s mineral, energy, and groundwater resources are the result of past and current geoscience processes.
HS-ESS3-6: Use a computational representation to illustrate the relationships among Earth systems and how those relationships are being modified due to human activity.