There are several ways that you could investigate the composition of inks. This is an outline of the required steps to undertake one of these methods. Watch this video to see a practical experiment ...

Watch this video to understand how paper chromatography can separate a mixtures of soluble substances. they produce the same number of spots, and these match in colour the spots travel the same ...

As the holidays draw near, many of us will hop on a plane to visit friends and family – or just get away from it all. Some will be subjected to a swab at the airport to test clothes and baggage for ...