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This Combination Limnology Outfit provides test equipment for analyzing natural water samples for pH, dissolved oxygen, carbon dioxide, nitrate, phosphate, calcium, magnesium, total hardness, and silica. The pH, nitrate, phosphate, and silica tests use ..

Introduce students to stream and river ecosystems through a classroom-based tour of a virtual watershed. Designed for teachers who are unable to visit a steam with their students. Your students will learn about stream ecology, water quality issues, ..

No other test kit on the market compares to this low-cost, portable, easy-to-use water testing kit. Students will have fun analyzing sample water for eight different test factors. Comes complete with all the necessary apparatus, nonhazardous..

This combination chemical test kit allows the user to perform analysis of the six most important parameters to be monitored in the environment: acidity, alkalinity, carbon dioxide, dissolved oxygen, hardness, and pH. Ideal for environmental studies stud..

An ideal way to monitor the general quality of most important chemical parameters in water: alkalinity, chloride, hardness, iron, pH, and sulfite. The kit includes 100 tests each for alkalinity (0-300 mg/L), chloride (0-1000 mg/L), hardness (0&#..

With enough materials for 30 students, this classroom kit includes test strips for testing nine different parameters including free chlorine, total chlorine, pH, total alkalinity, iron, copper, total hardness, nitrite nitrogen, and nitrate nitrogen. Saf..

Investigate water pollution using safe, simple TesTab® reagents. A lightweight, field carrying case houses 12 individual test modules. Each module contains easy-to-read, diagrammed instructions; color chart; a test factor flash card; and al..

A hands-on test kit to guide students through the study and measurement of changes in dissolved oxygen, nitrate, pH, and ammonia in a lake, stream, pond, or aquarium. Contains lecture materials, illustrated handouts, teacher tips, test procedures, d..