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Turning ‘Red Wine’ into ‘Water’

In this classic demonstration, from the Royal Society of Chemistry, a solution of acidified potassium dichromate, which looks like red wine, is poured into beakers with small amounts of colourless solutions in. The colour changes to water, milk, raspberry milkshake and lemonade. The solutions used are barium...

Making Rayon

In this classic demonstration, from the Royal Society of Chemistry, cellulose is dissolved in a solution of tetraaminecopper (II) ions to produce a blue liquid. When the liquid is injected into sulphuric acid, polymer fibres of rayon are produced.

The resource provides a list of apparatus and chemicals...

The Oxidation States of Vanadium

In this classic demonstration, from the Royal Society of Chemistry, zinc is used to reduce a yellow solution of ammonium vandate (V) to a mauve solution of vanadium (II) ions. The intermediate oxidation states of vanadium (IV) and vanadium (III) are also seen as the colours blue and green are observed.

The...

Complexes of Nickel(II) with Ethylenediamine

In this classic demonstration, from the Royal Society of Chemistry, the complexes of nickel are formed by reacting different amounts of nickel (II) chloride with ethylenediamine. When the experiment is complete the nickel complex is returned to its original state by the addition of acid.

The resource...

The Lead-acid Accumulator

In this classic demonstration, from the Royal Society of Chemistry, lead electrodes are placed in a solution of sulphuric acid and connected to a power pack. After charging, the power pack is replaced by a bulb which will light up for a short time.

The resource provides a list of apparatus and chemicals...

Making Polysulphide Rubber

In this classic demonstration, from the Royal Society of Chemistry, sulphur is dissolved in hot sodium hydroxide and the solution is reacted with 1,2-dichloroethane. The condensation polymer polysulphide rubber is formed.

The resource provides a list of apparatus and chemicals needed for the experiment,...

Phototropism

Here is a timelapse video of cress seedlings.

This is easy to set up using a cardboard box with strategically placed holes - one for a lamp opposite the cress and one for an iPad camera giving a side view of the cress. Use the iMotion App. This video took less then an hour to film at 1 frame every 3 minutes...

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Chemistry Experiments

Chemistry Experiments contains a varied collection of labcards and worksheets from which teachers can choose in order to build up a programme of chemistry practical work for use in the school laboratory. The labcards include labelled diagrams and questions which are designed to help guide students through the...

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