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.
Model, measure and understand complex density driven circulation associated with heat transfer through convection.
A hands-free option for measuring heart rate before, during, and after physical activity.
Vials contain a vacuum-sealed color forming reagent to test a variety of water quality parameters. 30 individual Total Hardness 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.
Vials contain a vacuum sealed color forming reagent to test a variety of water quality parameters. 30 individual Ammonia test vials.
Allows students to explore the rate of water movement and quantify pressure changes occurring in the system.
This is a Bluetooth, handheld science datalogger that lets students connect multiple wired and wireless sensors, collect data, generate live graphs, and perform data analysis.
Allows students to measure temperature by detecting emitted infrared from objects without contact. For use with PASPORT Interfaces.
This rack filters 0%, 25%, 50%, 75% and 100% of incident light to simplify the study of primary productivity.
