All Separation articles – Page 3

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White powder mix-up at the factory

Learners create their own chemical investigative company, and solve the mystery of the white powder mix-up. Includes kit list, and safety instructions.
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Water for survival | 11-16 years

Practical problem-solving investigation including filtration, distillation and temperature. Includes kit list and safety instructions.
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Separating sand, sawdust and salt

Sand, sawdust and salt will mix in interesting ways, and learners will need to use all their chemical knowledge to separate them, ready for Mrs Johal’s next class. Includes kit list and safety instructions.
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Desert survival | 9-14 years

Discover more about evaporation and condensation with this practical, that gives learners a chance to test their skills in a survival setting. Includes kit list and safety instructios.
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Colourful food: kitchen science podcasts

Introduce your students to colours in food with this short podcast.
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Mixing and changing: primary science podcasts

Introduce your students to mixing and separating mixtures, and investigating reversible and irreversible changes with this short podcast.
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Separating mixtures: That’s Chemistry!

In association with ABPI

The ‘separating mixtures’ chapter from That’s Chemistry! This chapter looks at key ideas and activities that can be used to help students learn how sieving can separate particles of different sizes and other methods used for separating mixtures.
Experiment
Crime scene chromatography

Using three different black pens, learners can put their scientific curiosity to use and explore chromatography
Experiment
Separating sand and salt by filtering and evaporation

In association with Nuffield Foundation

Try this class experiment to practise manipulating mixtures of soluble and insoluble materials by separating sand and salt. Includes kit list and safety instructions.
Experiment
Colour chemistry

A variety of experiments that explore colour changing, so learners can experience a comprehensive look into the brighter side of chemistry
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Chemistry and food security

This context/problem-based learning (C/PBL) resource is part of a collection we have commissioned for you to use with your undergraduate students. This 5 credit module is based on the following scenario:This resource will give your students an introduction to food safety and DNA analysis. It is based on DNA and ...
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Ion-exchange resin and water

Evaluate the advantages and disadvantages of a selection of resins and decide which one(s) would be best for producing pure water from seawater on a life raft.
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Dean-Stark apparatus

There are many equilibrium reactions that yield water as a co-product. It is the co-produced water that prevents a high yield of product being obtained. The removal of the water is necessary to drive the reaction to completion and this is done using Dean-Stark apparatus. The reaction is carried out ...
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Distillation

Distillation separates liquids on the basis of them having different boiling points. Video: Distillation video
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Recrystallisation

Recrystallisation is a means of purifying solids. If carried out correctly the final product will be both of a high yield as well as pure. Video: Recrystallisation video
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Vacuum filtration

When a solid needs to be isolated from a solution it is normally done at a reduced pressure using a Buchner flask and Buchner funnel. Video: Vacuum filtration video
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Space: science ideas webs

A web of suggested ideas for linking science with the topic space. You can learn history and science together with activities for different age groups.
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Ancient Egypt: science ideas webs

A web of suggested ideas for linking science with the topic Ancient Egypt. You can learn history and science together with activities for different age groups.
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The Vikings: science ideas webs

A web of suggested ideas for linking science with the topic the Vikings. You can learn history and science together with activities for different age groups.
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The golden age of Islamic science: science ideas webs

A web of suggested ideas for linking science with the topic the golden age of Islamic science. You can learn history and science together with activities for different age groups.