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A short overview of the common methods of water purification in school laboratories, include pros and cons. This will be useful for any teacher or technician looking to buy a new water purification sy.. more
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Health and Safety information on a range of wave radiations studied in school science; including radio, micro, infra red, ultra violet, visible light, X-rays, and gamma rays.
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Describes and explains the various spectra which are used to identify chemicals. Provides data on the infra red, magnetic resonance, mass and UV spectra for a range of common organics substances.
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Gives very detailed guidance on what water purification entails, and when pure water is needed in school science. It suggests the advantages and disadvantages of the methods of purification available .. more
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Provides templates for diultion streaking, and describes how to do it.
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This demonstration shows an important procedure in chemistry and industry, to separate a pure substance from a mixture of substances with widely differing boiling points. One important industrial exam.. more
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With careful supervision, students can carry a simple distillation to separate a pure substance (water) from a solution (copper(II) sulfate). This can be achieved by using a side-arm boiling tube inst.. more
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This document provides guidance on investigating the destruction of vitamin C in liquid and solid food materials caused by heating.
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This guidance is for choosing batteries for general practical circuit work, where pupils experiment with low-voltage circuits by connecting batteries , torch bulbs, buzzers, small motors and other low.. more
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Explains what is meant by environmental monitoring, and the range of equipment available. Describes in detail each of the parameters which can be monitored including possible difficulties. Also descri.. more
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