La confrérie de la vieille souche

Arnold's cousin Janet visits Miss Bille-en-tête's class for a trip to the planetarium to see a presentation on the solar system. Arnold suggests a trip to space.

The magic bus takes off with Miss Bille-en-tête who will take them through all the bad weather. During this journey, the class undergoes the changes of state of water to understand the formation of precipitate. With the addition and removal of heat, the students take the form of solids, liquids and gases.

While visiting the ant's habitat, the magic bus discovers that each ant has its own role in their underground community and that the survival of all depends on the role played by each one. This is a great example of an interdependent population of organisms!

The story of this frog is a positive illustration of the natural environment in which an animal lives. Exploring the magic bus in this pond habitat affirms to them that specific resources such as food and space must be present in order to meet an animal's needs.

Miss Bille-en-tête teaches the class the basics about sounds, and everyone is interested.

Arnaud does not want to leave. But that's no problem! He will still be part of the expedition as the bus unknowingly visits his digestive system. The class travels along its complex structure of organs necessary for digestion and learns about their functions.

The day Raphael is assigned to find the subject of a TV show with the rest of the class, he gets a bad sore throat. The class takes a trip into his bloodstream to find out what is going on in his body. They learn that there is a bacteria attacking his cells. His body temperature and respiratory system are affected, but his white blood…

In trying to assemble a globe, the class runs into a problem: one piece is missing, an island. But where does this island come from?