Anomalias da água: uma abordagem para educação básica

Abstract

This work is part of a line of research aimed at exploring the anomalous behavior of water in Physics and Science Teaching. Anomaly consists of an irregularity or abnormality that can be seen, for example, in the behavior of a particular material. Water, in particular, exhibits various so-called anomalous behaviors, which make it a fluid that is quite different from the rest and has great potential for teaching physics and science. The anomalies of water are associated with some of its physical properties, such as surface tension, specific heat and thermal expansion, which are the subject of this research. The research was carried out in collaboration with the Demonstration Laboratory (LABDEMON) of the Federal University of Pará (UFPA). Our proposal includes the production and publication of videos on the YouTube channel "Demonstration Laboratory - UFPA" and the production of a teaching sequence on the subject of water anomalies, with the aim of contributing to the teaching activities of Physics and Science teachers in Basic Education. Thus, experiments associated with the theme were developed in the classroom, using the Sequences of Teaching by Investigation (SEI) as a theoretical-methodological framework and, together with the videos produced, the effective application of the proposal represented one of the students' first contacts with experimental demonstration activities. The didactic material produced allows teachers and students to reproduce the experiments and also to analyze and discuss the results in different educational contexts, both in basic education and at technical and higher education levels.