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Toothpaste Evaluation 4-202

Target Grades: 9-12

Studying the physical and chemical composition of toothpaste is not only a valuable scientific activity, but leads to consumer evaluation of the best toothpaste for the price. Students learn about the development and demineralization of enamel and the functions of various tooth paste components. They evaluate several toothpastes for percentage of solids, pH, foaming action, abrasive action, and specific substances and use this data to make judgments about toothpaste effectiveness. This kit is ideally taught as guided inquiry/qualitative analysis. Required, but not included: balance, infrared lamp or hot plate, evaporating dishes, lab glassware, plastic tubing, Petri dishes, and samples of five brands of toothpaste.

Kit Contains:
Instructor Manual
Student Data Sheets
MSDS
Microscope Slides (Glass)
Microscope Slides (Plastic)
Medicine Cups
pH Paper
Pipet
Hydrochloric Acid Dilute Solution
Ammonium Hydroxide Solution
Ammonium Oxalate Solution
Limewater
Nitric Acid Solution
Silver Nitrate Solution
SPADN Test
Fluoride

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