Dialysis Experiment
Kit #23
$162.15
Chemical and biological theories come to life in this natural continuation to the study of osmosis and diffusion (Lab-Aids Kit No. 22). In this activity, students use a colloidal solution of starch and sodium chloride to vividly observe dialysis. They also observe diffusion of a solute through a semi-permeable membrane. Students then remove an inorganic salt from a colloid and test for the presence of chloride ions and starch with simple color tests. Individualized worksheets guide students through the step-by-step procedure in this self-directed lab activity.
Details at a Glance
- 1 Day | 1 ~50 minute class period
- 1 Activity
- Accommodates 1 class, with 12 groups of 2 students
- Consumables service 24 students
- Meets our criteria for supporting literacy
- Requires a water source
Scientific Concepts
- Observe diffusion of a solute through a semi-permeable membrane
- Remove an inorganic salt from a colloid
- Test for presence of chloride ions and starch with simple color tests
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
- 30 Dialysis membranes
- 30 Plastic containers
- 12 Chemplates®
- 3 Bottles of Iodine Solution
- 3 Droppers
- 2 Bottles of Starch Suspension
- 2 Bottles of Sodium Chloride solution
- 1 Bottle of Silver Nitrate solution
- 1 Bottle of Deionized Water
- 30 Student Worksheets and Guides
- 1 Teacher’s Guide with MSDS