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 Iron test vials.
Allows students to measure temperature by detecting emitted infrared from objects without contact. For use with PASPORT Interfaces.
Vials contain a vacuum sealed color forming reagent to test a variety of water quality parameters. 30 individual Alkalinity test vials.
The PASPORT Salinity Sensor works with the included Salinity Sensor Probe to measure salinity, conductivity and temperature.
PASCO’s Light Sensor is ideal for indoor and outdoor relative light intensity experiments.
Set of 5 clear PVC taps for water flow visibility when designing and constructing pipe networks. For use with an Absolute Pressure Sensor.
Allows students to explore the rate of water movement and quantify pressure changes occurring in the system.
Allows students to explore the rate of water movement and quantify pressure changes occurring in the system.
This rack filters 0%, 25%, 50%, 75% and 100% of incident light to simplify the study of primary productivity.
Vials contain a vacuum sealed color forming reagent to test a variety of water quality parameters. 30 individual Phosphate test vials.
