In this subunit, students examine the basic physical properties of light and its interaction with materials in a predominately qualitative fashion. They learn that sources of light have specific physical characteristics and these can determine properties of light, such as its colour and intensity. They investigate the interaction of light with matter and explore phenomena such as reflection and refraction.

Student level: 
Lower secondary school level, students of age 11-15
Estimated duration: 
5-6 class periods