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Kids&Science Diet Fats and Oils Attributes of Fats A Simple Proof of Fats
Index
See also: The Structure of Fats, Fatty Acids, The Importance of Fats for the Human Body, Fats and How They Are Gained, Visit to an Oil-mill, Attributes of Fats, The Solubility of Edible Oil, Rape Oil and Rep Oil, Kinds of Fats, Preparation of Margarine, A Healthy Choice: Pumpkin Seed Oil and Linseed Oil, Fats and Oils for Cooking 

 

A Simple Proof of Fats

Grease Mark Test

Utensils: writing paper, cotton tips

Chemicals: fats, fat oils, fat foods

Procedure:

    • With the help of the cotton tips, dab different oils and fats on a piece of writing paper.
    • Mash fat foods between the paper

Observation:

Permanent grease marks show on the paper, which can be seen particularly well, when the piece of paper is held up to the sunlight.

Analysis and Evaluation:

Oils and fats have very high boiling points, and they are not able to evaporate in the air like water. Therefore, they leave permanent traces on paper.

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