The unit photochemistry is an interdisciplinary unit built on the chemistry, biology, physics and issues. The whole unit is based on the properties of light and electromagnetic waves. The whole unit is based on the properties of light and electromagnetic waves. It consists of 4 subunits

Photochemistry is defined as a discipline of natural science, that deals with chemical processes occurring under the influence of the electromagnetic radiation. For the purpose of this study, the word ‘photochemistry’ is used in relation to the thematic unit based on the chemistry, biology, physics and interdisciplinary issues.