1. If you were absent and unable to do the lab or view the results,
Observing Osmosis Lab
If you were absent and unable to do the lab or view the results,
refer to these images.

2. Polyacrylamide spheres before
Each of the spheres looked like this one at the beginning.
The initial mass of the spheres was 0.08 g

3. Image of the spheres on Day 1
The average change in mass of the control sphere = 0.00g The average change in mass of the tap water sphere 1 = 7.99 g The average change in mass of the distilled water sphere 2 = g

4. Image of the spheres 1 and 2 on Day 2 after soaking in salt water.
The average change in mass of the control sphere = 0.00g The average change in mass of the tap water sphere 1 = g The average change in mass of the distilled water sphere 2 = g

5. Completion of Observing Osmosis Lab
Create your graph o page 9 using the average change in mass data (provided by period 7).
Use the images to help answer the questions on page 11