Today we did chromatography. The theory was easier than expected, because we only have to cut out different letters to test whether they are written by the same pens. The results were not really good, though, as the traces are rather faint and they all look the same.
For the flame tests, we learned about how when different trace elements are burnt, different coloured light is emitted. The fires are really pretty, especially the copper (green), potassium (lilac) and an unknown element with white that has streaks of red. However, one bad thing is me and my partner took all videos and no photos :( what are we going to do for the camera album??
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