In this Ammonia Nitrogen test kit, salicylate reacts to form a blue color and levels are determined using the Octa-Slide 2 Comparator. Range and sensitivity is 0.0 – 2.0 ppm NH₃-N. Suitable for use in fresh, brackish and salt water.

This kit tests for Hydrogen Peroxide using the dropper bottle method. Range/Sensitivity is 1 drop = 5 ppm H₂O₂.

The Topsoil Tour is an exciting classroom investigation into the physical and chemical properties of soil. Each student on the Topsoil Tour completes seven units while conducting his/her own soil tests for soil texture, pH, nitrogen, phosphorus and potassium using simple TesTabs^® reagent tablets. Incorporates math and science activities.

Activities can be modified to fit specific curriculum needs or learning opportunities. Data sheets and puzzles for each unit can be printed or filled electronically by students using a computer or tablet. Includes Instructor Manual, Student Manual with data sheets and puzzles, classroom color chart, and reagents and test tubes for 50 students.

• Instructor Manual with everything you need from background information and setting up the classroom to a shopping list for everyday items
• Student Manual including test procedure, data sheets, and puzzles
• Students work in groups and individually
• Encourages critical thinking and active learning
• Flipped learning: Students can read background material before the lesson and apply knowledge to analyze their own classroom data
• Works on computer or tablet
• Great for inclusion classrooms

This kit tests for pH using the Octa-Slide 2 Comparator. Covers a wide pH range from 3.0 – 10.5 pH.

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; a color chart; a test factor flashcard; and all the necessary apparatus and non-hazardous TesTabs^® to perform 100 tests. This complete, economical kit also includes a manual and The Monitor’s Handbook. Recommended for grades 5 and up.

This Chlorine test kit measures free, total & combined Chlorine using Chlorine DPD tablets and the Octa-Slide 2 Comparator. Range/sensitivity is 0.2 – 3.0 ppm Cl.