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Milky Magic

Posted on Apr 27 2017 by Adrian Hindes

Tags: biology, chemistry, polymers, plastics

Experiment Overview

Have you ever heard that plastic can be made out of milk? If this sounds far-fetched, you may be surprised to learn that from the early 1900s until about 1945, milk was commonly used to make many different plastic ornaments. This included buttons, decorative buckles, beads and other jewelry, fountain pens, the backings for hand-held mirrors, and fancy comb and brush sets. Milk plastic (usually called casein plastic) was even used to make jewellery for Queen Mary of England! In this activity, you will make your own casein plastic out of hot milk and vinegar.

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