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Investigating Indicators 1-136

Target Grades: 4-8

Dramatic color changes and kitchen chemistry make this kit ideal for attracting elementary scientists. Utilizing the investigative and experimental “what if” approach, students predict, observe, and analyze using common household items they recognize. First they test for acids using natural indicator solutions from red cabbage and black bean juice, then they are introduced to the terms acid and base as they learn to use blue and red litmus papers. Finally, the students compare the natural indicator system to Universal Indicator pH paper and use color charts; then they make their own Universal Indicator Test Strips from Universal Indicator Solution and filter paper. Using gelatin and a choice of indicator solutions, students make a solid gelled indicator product for testing acids and bases. Includes directions for the isolation and  characterization of compounds which act as indicators. Designed for 24 students working in six groups of four.  Meets national standards for grades 5-8.

Kit Contains:
Instructor Manual
MSDS
Sodium Bicarbonate
Sodium Carbonate
Agar
Gelatin
Detergent
Ascorbic Acid
Acetic Acid Solution
Boric Acid Solution
Ammonia
Citric Acid
Universal Indicator
Blue Litmus Paper
Red Litmus Paper
Universal Indicator Paper
Tea Bags
Universal Indicator Color Chart
Sheets of Paper
Pipettes
Petri Dishes
Coffee Stirrers
Combination Microplates

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