Lab Aids | Store

Biology and Chemistry of Soil Experiment

kit #32

Time to play in the dirt! Students conduct a thorough evaluation of their local soil. They use simple, easy-to-follow staining procedures and microscopes to observe and identify a range of soil biota. Students then test the soil for cation exchange capacity and pH and relate these characteristics to its ability to support plant growth. All tests are performed using either a Chemplate® or calibrated sample tubes.


  • Identify the type and variety of soil biota
  • Calculate the cation exchange capacity
  • Determine soil pH
  • Correlate soil pH to % base saturation
  • Use staining technique and microscopes
  • (optional) Calculate the lime requirement for soil

Content List in Biology and Chemistry of Soil Experiment is as follows:

Quantity Description
50 Cup, plastic
50 Glass microscope slide
12 Tube, calibrated
12 Lab-Aids Chemplate
4 Phenolic Rose Bengal, Drop control bottle
3 Barium Chloride Solution, Drop control bottle
2 pH Soil Indicator Solution, Drop control bottle
1 Potassium Dichromate Solution, Drop control bottle
50 Student Guide
1 Teacher’s Guide
1 Safety Data Sheet (SDS) packet
Number of students
Number of groups
Maximum 12 groups per period

To complete this kit requires two to three ~50-minute class periods.

Title Item # Price Quantity
Biology and Chemistry of Soil Experiment 32 $110.15
Biology and Chemistry of Soil REFRESH-A-KIT 32-RC $39.75