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At home science - Coloured pens experiment - ExpeRimental #11

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Published on Jan 29, 2015

Teach children how to find the beautiful hidden colours in ink and use chromatography to solve mysteries.
For info sheets and printable badges, click here: http://rigb.org/experimental/series-2...
ExpeRimental is a series of videos showing fun, cheap, simple science activities to do with 4-10 year olds.
Subscribe for regular science videos: http://bit.ly/RiSubscRibe


Fiona and her daughters Samantha and Emma explore the beautiful science of chromatography. In this fun experiment to do at home, they reveal the hidden colours inside felt tip pens. As water is drawn up through the kitchen roll, it drags up the colours that make up the felt tip ink. Fiona and her daughters learn that although two inks may look the same, they may be made of different balances of colours. Using their newly learnt skills, Samantha and Emma solve a felt tip mystery, identifying which pens were used to write which letters.

Make beautiful pictures called chromatograms, that show the hidden colours in inks.
ExpeRiment with different pens to see what colour dyes are in their inks.
Learn about the scientific technique of chromatography and how it can be used to solve mysteries.

This series of ExpeRimental is supported by the Royal Society of Chemistry.

ExpeRimental, brought to you by the Royal Institution of Great Britain, is a series of free short films that make it fun, easy and cheap to do science at home with children aged 4 to 10. Our films give you lots of ideas for kids' activities that will help you explore the world around you, question and experiment together. We'll show you how to do the activity and how to make sure adults and children get the most out of it. Why not have a go and then tell us what you think on our Facebook page? https://www.facebook.com/Ri.ExpeRimental

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