Biology · Cell Biology
Observe osmosis in potato strips
Soak potato strips in salt solutions and find the concentration at which they neither gain nor lose mass.
- Easy
- 1 day
- Under 250
606 projects · 13 streams · every class
What do you want to build?
4 projects
Chemistry · Analytical Chemistry
Estimate the calcium carbonate in eggshells
React eggshell with vinegar, measure the mass of carbon dioxide lost and calculate its purity.
- Intermediate
- 1 day
- Under 250
Chemistry · Organic Chemistry
Synthesise and test soap from cooking oil
Make soap by cold-process saponification under supervision and test its pH and lather.
- Advanced
- 2–4 weeks
- 250–500
Materials, Energy and Other Branches + Chemistry
Study corrosion protection for steel
Compare paint, oil, zinc coating and sacrificial protection on steel in salt water.
- Intermediate
- 2–4 weeks
- 250–500
0 to compare
Compare