Teacher to write a fake suicide/murder note (or part of a note) on filter paper. Show the class how it separates into various pigments. Set up student practical with at least 3 inky black pens. Even ...
pptx, 2.34 MB docx, 760.78 KB png, 39.7 KB png, 54.12 KB This PowerPoint describes how chromatography is used to separate mixtures of colours. It includes a practical on examining the different ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results