Today students had a test on Chapter 7: Parts of the cell, osmosis and diffusion.
The big news is: the dialysis tubing has now arrived! Instead of pushing ahead with photosynthesis, we're going to do a lab tomorrow using the Vernier probes we learned how to use last week.
In this lab, you will look at how concentration effects the rate of diffusion.
Homework:
Make a prediction for how you think concentration effects the rate of diffusion. In your prediction make sure to include a definition of diffusion and an explanation of the principle.
In addition, you will need to write a procedure to use in class tomorrow for this experiment. Below are some experimental guidelines:
Each pair will have:
a Vernier pH Probe and lab base
Three unknown samples to test
dH2O
You should set your probe to follow the guidelines we did in class (3 minutes, 20 samples per minute).
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