Abstract
We present a set of activities that can be used as a starting point to build a learning project that can be developed in the 3rd or 4th levels of ESO and, with some adaptations, also in the first year of high school. The challenge is to find answers to relevant questions related to scientific contents related to solar radiation and the repercussions of this on one's own health and that of the population. The investigation, the design and execution of experiments as well as the data recording and its interpretation have a special relevance throughout the whole proposal. In the different activities, the relationships between the ideas that are worked on and the concrete scientific model to which they correspond are indicated, thus providing an opportunity to contribute to the construction of these models. Finally, it reflects on the operation of the proposal when it has been implemented with ESO students and when it has been presented in teacher training courses.
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