P034 - Separating inks: simple method
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This practical activity
shows how to separate mixtures of liquids to investigate colour using ink in water based felt tip pens.
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![Seperating inks KS1](/dbImages/Thumbnail/Seperating-inks-KS1.jpg)
P014 - Separating felt pen ink colours
![Doing Things Safely Doing Things Safely](/images/safety.png)
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The ink in water based felt tip pens consists of different pigments. This practical describes how to separate mixtures of liquids in order to investigate colour.
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![Separated inks on a filter paper](/dbImages/Thumbnail/Chromatography.jpg)
PST53 - Summer 2012
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This issues introduces a range of activities to investigate colours and a booklet from Froglife with tips for encouraging wildlife in ponds. We give an overview of a new guide studying microorganisms in primary science and making sundials to support teaching the orbit of the Earth around the Sun.
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![Encouraging wildlife in ponds](/dbImages/Thumbnail/Pond-life.jpg)
P148 - Growing crystals with table salt
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An activity that supports children to learn about dissolving, evaporation and crystal growth.
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![Crystals on a lid](/dbImages/Thumbnail/P148-Growing-crystals-with-table-salt.jpg)