Watch Fats and Fatty Oils - School Movie on Chemistry

The subjects of this film are fats and fatty oils. Chemists call them lipids and they are a key component of our diet. In actual fact, they only differ in their melting point: if the substance is solid or semi-solid at room temperature we call it fat, if it is fluid we call it oil. Its correct technical name is "fatty oil" because - from a chemical point of view - there are other oils.