Correlating the different sizes of the cubes to the total surface area and determining how the ratio of TSA/V affects the diffusion

We carried out an experiment last Tuesday to know how the ratio of TSA/V affects the diffusion. We cut the agar – phenolphthalein into different size and put it into a Petri dish then poured some alkaline solution and recorded the percentage portion which has changed. We enjoyed and learned a lot through this experiment.

The students are separated into groups.

Group leaders are setting up the experiment.

The members are observing the changes of the cubes.

The result of this experiment.