What is a crystal? This scientific question will be answered in an interactive demo video. How to build a crystal structure will be demonstrated using marshmallow atoms and stick bonds.

The importance of crystals in the manufacturing of medicines will be explained. State of the art research facilities used for the development of future medicines will be presented.

To join in the crystal model building you will need a packet of marshmallows (preferably 2 different colours and not mini marshmallows), cocktail sticks or spaghetti and adult supervision.

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