This article offers simple ways to unravel science mysteries. It helps everyone understand natural phenomena and facts, both everyday (breathing) and occasional (volcanic activity). It can inspire the class to develop further hands-on experiments. Both at a global level (climate change) and at a much smaller one (experiments), it allows students to realise that dangers exist and that it is necessary to take measures to avoid them.
The article can be linked to current events or local natural phenomena such as Icelandic volcano eruptions or geothermal pools. It may also contribute to the awakening of a more ecological conscience. Interdisciplinary links can be made between environmental and ecological issues in chemistry and physics, biology (breathing), earth sciences, maths (measures and proportions) and literacy (instructions and rules).
Younger children will love the fizzy balloons and geysers; I would reserve the more explosive activities for the older students.