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Instructions on how to make a holder for carbon rod electrodes.
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Instructions on how to make stirring rods. Uses straight forward glass working techniques.
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This edition includes notes on the SciTech technicians' 'chat line', a DIY method for clearing blocked gas taps, what the word 'dilute' might mean in the context of school chemical solutions, the ban ..
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You can demonstrate that hot glass is an electrical conductor (hot glass is actually an example of a solid electrolyte). This is counterintuitive because at room temperature, glass is a good electrica..
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A suite of 3D printable accessories to perform various experiments with school radioactive sources.
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Clear instructions for building two versions of a cloud chamber. One uses dry ice as the cooling agent, the other uses an inexpensive electronic coolers which is quite simple to make.
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An alternative way to investigate heat conduction in different metals.
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The low melting point of gallium metal is demonstrated, eg by using warm water to melt a sample or by making it into a spoon shape and showing that it melts when used to stir a cup of tea.
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An updated method of staining gram-positive and gram-negative bacteria using basic equipment.
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This procedure demonstrates how to use a signal generator in conjunction with a loudspeaker and an oscilloscope to show a representation of a soundwave. Varying the amplitude and frequency on the sign..
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Showing results 1 to 10 of 223
