In this lesson, students will use varying molarities of a salt solution to observe diffusion through a membrane.
- Students will explore the movement of molecules through a membrane via diffusion.
- Students will explore the effects of concentration gradient on diffusion rate.
- concentration gradient
About the Lesson
This activity involves students conducting 4 separate trials using 4 different molarities of a salt solution.
As a result, students will:
- Use a conductivity probe to understand diffusion rates.
- Develop an understanding of the effect of the concentration of a solution on the rate of diffusion across a selectively permeable membrane.
You may want to have students create a Lab Report using TI-Nspire following this lab activity. A sample lab report is provided in the downloads.