Investigating Hard and Soft Water
kit #191
Using simple tests, students gain experience with ionization, precipitation and solubility. This Lab-Aid is an excellent activity for studying water purification, water pollution, ecology, earth science and consumer education. Students study important concepts in a clear, meaningful and relevant manner. This kit is highly recommended for intermediate and junior high science courses.
- Gain experience with ionization, precipitation and solubility
- Relates to water purification and water pollution
- Applies to ecology, earth science and consumer education
Content List in Investigating Hard and Soft Water is as follows:
| Quantity | Description |
|---|---|
| 36 | Test tubes |
| 12 | Plastic spatulas |
| 2 | Vials of Sodium Carbonate |
| 2 | Bottles of Hard water |
| 2 | Bottles of Deionized water |
| 2 | Drop control bottles of Soap Solution |
| 2 | Vial of Calcium Sulfate |
| 1 | Bottle of Magnesium Chloride solution |
| 1 | Bottle of Soap Material |
| 1 | Bottle of Calcium Chloride solution |
| 50 | Student Worksheets and Guides |
| 1 | Teacher’s Guide with MSDS |
- Recommended number of students
- maximum 24 at the same time
- Number of groups
- maximum 12 at the same time
To complete this kit requires one ~50-minute class period.
