The most difficult part for students will probably be the understanding the relationship between the structure of matter and the properties of matter: what makes a molecule hydrophobic or hydrophilic; how to choose the right solvent for a particular substance, etc.  The task for a teacher is to develop students’ understanding that (1) there is a quite sophisticated science behind cosmetics, (2) science knowledge can contribute to the production of better products, and (3) there are always a number of pros and cons of industrial as well as home-made cosmetics.

Overall aims/competencies: The students are expected to be able to:

  1. Propose ideas as to why we should make cosmetic products ourselves and what are related pros and cons.
  2. Search for relevant information from the Internet and library resources.
  3. Critically analyse the ingredients of cosmetic products and make decisions about their quality.
  4. Understand the general principles behind the ingredients of cosmetic (emulsion) creams; based on his/her scientific knowledge be able to explain what role the ingredients play in the cream and explain their effect on the skin.
  5. Make an emulsion cream from simple ingredients on their own
  6. Work as a team in looking for information, analysing, planning the experiment and presenting the product
  7. Present the product to others in a persuasive manner
  8. Use the correct terminology related to the topic both orally as well as in written format.
  9. Use creative thinking in designing the product, the commercial, and making up tests in order to be able to answer whether a self-made product is usable
  10. Be aware of the careers related to cosmetics industry

The learning content as defined by the syllabus: Hydrophobic and hydrophilic substances, chemical bond, polar and non-polar substances, principles of solubility, emulsion, emulsifier, fats, the structure and functions of skin.

The types of activities: Searching for information from various sources, analysing the ingredients of cosmetic products, designing the product (from idea to implementation and marketing), producing a commercial and presenting it to the class, testing the properties of a product against determined criteria, making a decision on the suitability of the self-made product in place of analogous commercial products.