Lab-Aids:‚ Biology and Chemistry of Soil Experiment Kit Time to play in the dirt! Students use ordinary soil samples to conduct a thorough evaluation of soil. Simple, easy-to-follow techniques and staining procedures are introduced early in this series of activities. After performing a series of activities, students are asked to draw conclusions concerning a soil„¢s ability to support plant growth. All tests are performed using either the patented Chemplate‚® or calibrated sample tubes. Scientific Concepts: Conduct a thorough evaluation of soil Identify the type and variety of micro-organisms (soil microbes) Calculate soil fertility by a cation exchange capacity elimination Test and determine soil pH Correlate the soil's pH value to soil lime requirements Develop and use stain technique and microscopes Content List: 1 Teacher's Guide with MSDS 50 Student Worksheets and Guides 12 Chemplates‚®, LAB-AIDS‚® 50 Cups, plastic 50 Plastic slides 12 Tubes, calibrated 3 Barium Chloride Solution, Drop control bottle 4 Phenolic Rose Bengal, Drop control bottle 2 pH Soil Indicator Solution, Drop control bottle 1 Potassium Dichromate Solution, Drop control bottle Classroom Planning: To complete this kit requires 1 ~50-minute class period. Number of students: 50
