Investigating Hard and Soft Water
Kit #191
$127.30
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.
Details at a Glance
- 1 Day | 1 ~50 minute class period
- 2 Activities
- Accommodates 2 classes, each with 12 groups of 2 students
- Consumables service 48 students
- Meets our criteria for supporting literacy
- Requires a water source
Scientific Concepts
• Gain experience with ionization, precipitation and solubility
• Relates to water purification and water pollution
• Applies to ecology, earth science and consumer education
Guides & Student Sheets
Our kits and modules provide you with everything you need so you can open, review, and teach the material confidently the next day.
- Full downloadable Teacher Guide with background information, detailed instruction, example data and answers
- Downloadable Student Sheets with age appropriate background information, full procedure(s), and analysis questions
- All materials necessary to carry out the investigation
- Safety Data Sheets
Kit Components
- 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