Interpreting daily optical phenomena

Abstract

This paper presents ten activities to work with the behaviour of some materials according to light. Orientated to grades 5, 6, 7 and 8, the authors comment every experience. What do we need to see?, a model to explain light, materials for windows, apparently opaque materials, mirrors, light without light, curiosities and uses of mirrors, optical illusions, reflections on shop windows, study of reflections.