Intriguing Ice

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This video demonstrates an experiment which may be used when learning about changing state. Different kinds of liquid are frozen and the results observed and discussed. Pre-boiled water results in a mostly clear ice, salt water a cloudy ice, lemonade an ice full of holes and coloured water turns into an ice block with all of the colour pushed to the centre. This demonstration could be re-created with children making predictions about what may happen when different liquids are frozen then comparing this to the results and giving explanations.

This resource has been provided by the Royal Society of Chemistry (RSC), as part of their collection for primary teachers. 

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