Students will take on the role of investigators and analyze samples of soil, glass, dust, and metal traces to establish or eliminate a suspect’s presence at the crime scene.
There are enough materials for 24 students working in 6 groups with 4 students per group.
Universal Indicator w/chart
0.5M Potassium chromate
Small gummed labels
0.5M Hydrochloric acid
Density gradient tubes (vials)
Materials needed but not included:
|Test tube rack|
Oven, lamp, or hot plate
25ml Erlenmeyer flasks/bottles w/stoppers
10ml graduated cylinders
Dropper pipettes and suction bulb