The phenomenon of brine rejectiona practical proposal for prospective primary teacher training

  1. José Domingo Villarroel 1
  2. Daniel Zuazagoitia 1
  1. 1 Universidad del País Vasco/Euskal Herriko Unibertsitatea
    info

    Universidad del País Vasco/Euskal Herriko Unibertsitatea

    Lejona, España

    ROR https://ror.org/000xsnr85

Zeitschrift:
Educación química

ISSN: 0187-893X

Datum der Publikation: 2016

Ausgabe: 27

Nummer: 3

Seiten: 205-208

Art: Artikel

DOI: 10.1016/J.EQ.2016.03.001 DIALNET GOOGLE SCHOLAR

Andere Publikationen in: Educación química

Ziele für nachhaltige Entwicklung

Zusammenfassung

The fact that sea ice may be a suitable source for fresh water is nothing new; in fact, sailors were aware of this long ago. Nevertheless, the issue that ice does reject the ions of a saline solution is not a well known topic by both novice learners and prospective teachers. This paper describes a practical activity carried out in the regular chemistry training course aimed at teachers-to-be with the objectives of, on the one hand, getting to know the phenomenon of brine rejection and, on the other hand, taking advantage of the utilized experimental design to gain insight into the colligative properties of solutions. This activity might also be adequate for secondary and high school levels