Forensic Presumptive Blood Test Kit, 30 Tests Geology_Geology Specimen Collections 5 inches producing 50-60 dots

5 inches producing 50-60 dots per second via a vibrating striker

and precise volumetric measurement techniques

Economy-format sodium chloride crystal model building the cubic NaCl lattice from atoms and bonds

Electroscope-style charge data-logging sensor detecting positive or negative electrostatic charges

Demonstration spherometer with an oversized 133 mm dial head and baked enamel finish

Forensic Presumptive Blood Test Kit, 30 Tests Geology_Geology Specimen Collections 5 inches producing 50-60 dotsReagent based and classroom safe, this presumptive blood test kit uses phenolphthalein and hydrogen peroxide swabs to reveal blood presence through a rapid color change.