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Nice color blindness book with nice illustrations for testing and demonstrating color blindness. Both numbers and figures appear in the book.
Text in both Chinese and English.
Vials contain a vacuum sealed color forming reagent to test a variety of water quality parameters. 30 individual Chlorine test vials.
Measures the water content of soil and reports it in percent. For use with PASPORT Interfaces.
Used for measuring the temperature of liquids, air, and other materials. ScienceWorkshop Version.
Set of 5 clear PVC taps for water flow visibility when designing and constructing pipe networks. For use with an Absolute Pressure Sensor.
A single polycarbonate chamber designed to integrate sensors for controlled-environment experiments such as fermentation and plant / cricket respiration.
Easily measure heart rate before, during, and after exercise with the data transmitted wirelessly to your devices.
Model, measure and understand complex density driven circulation associated with heat transfer through convection.
Vials contain a vacuum-sealed color forming reagent to test a variety of water quality parameters. 30 individual Total Hardness test vials.
Allows students to measure temperature by detecting emitted infrared from objects without contact. For use with PASPORT Interfaces.
A hands-free option for measuring heart rate before, during, and after physical activity.
