Nexpensive, compact counter for measuring milliseconds. Each count is started and stopped by a signal at the input sockets. The device is automatically reset to zero each time it is restarted.
Diffusion and Osmosis kit, Includes: Agar, Bromothymol blue concentrate, Hydrochloric acid, Plastic cups, knives, stirrers, Cork borer Dialysis tubing, Microscope slides, Coverslips, Sucrose, Ovalbumin, Sodium chloride, Glucose QuickSolution, to study movement of water
Quick and easy tool, for demonstrating thermal expansion, four bar combinations: Brass/Aluminum, Brass/Iron, Copper/Iron, and Brass/ Copper. Since each metal has a different coefficient of thermal expansion, they will create a unique curve when paired with a different metal
Practi-Hepatitis B Vaccine*, for clinical training, simulated hepatitis B vaccine practice designed to teach the essential skills necessary to calculate, measure, and administer single dose vaccines, filled with distilled water, size: 1 ml vial