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 Nitrate test vials.
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.
Vials contain a vacuum sealed color forming reagent to test a variety of water quality parameters. 30 individual Ammonia test vials.
Used for measuring the temperature of liquids, air, and other materials. ScienceWorkshop Version.
