Workshop!

After the theory section, it was time for an exercise in problem-based learning.

Task: collect biological samples from the lake, and analyze which species can be found.

First, we set up a workshop in the greenhouse, much like the pupils of the school.

Then, to collect the samples, we needed boats. We could use some that were parked at the shore near the greenhouse.

The weather had apparently been prepared for us by Mr. Murphy — since we were going outside, it had to be a rainy day.

The boats needed to be emptied of water before use.

It had been raining also on Monday.

This is the greenhouse, viewed from the shore.

The rest of the group is walking out to prepare for sample collection.

There was wharf for the boats a bit further along the shore.

At the location of the previous picture, less than half a meter from the lake, geothermal heat could be seen rising through the ground.

The water was boiling [video: 5 sec, 500 kB].

Once the samples had been collected, next up was analysis.

Microscopes were very useful for this.

What's under the microscope?

Looks like a... Canthocamptus staphylinus, says the reference book.

For a full reference of observed species, see the appendix.