CLEAPSS Supporting practical science and technology
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The latest resources published by CLEAPSS.

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Members only resource
A simple method of observing animal cells using liver. A great alternative to cheek cells.  
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Members only resource
Guidance on preparing, labelling and storing of solutions, A and B, for making ‘nylon ropes’.
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Members only resource
This demonstration shows preparation of nylon, where solutions of 1,6- diaminohexane in water and an acid chloride in an immiscible solvent are brought together. The nylon polymer forms at the interfa.. more
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Members only resource
The reaction between iron and sulfur, to produce iron(II) sulfide, is described in PP079. The reaction between iron and sulfur – students’ version. This document describes a range of chemical tests.. more
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Members only resource
The reaction between iron and sulfur, to produce iron sulfide, is cited in many textbooks and other resources as a good demonstration of the difference between mixtures and compounds. A key distinguis.. more
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Free resource
The reaction between iron and sulfur
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Free resource
Guide to doing practical work during the COVID-19 Pandemic – Science
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Free resource
A guide on how best to sanitise eye protection during the COVID-19 panademic
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Members only resource
RB120 - Janus green  (6 Oct 2020)
Guidance on the preparation of Janus green solution. This is used as an indicator for respiration and a stain for mitochondria.
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Members only resource
RB115 - Sudan III  (6 Oct 2020)
Guidance on the preparation of Sudan III solution. This is used as a stain for lipids, such as fats and oils. 
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