Firstly sorry about being a bit rubbish on uploading content, I need to get back in the habit of writing about what I’m up to. Anyway, I recorded this video a while back and didn’t upload it because my breathing was too loud (I found a way to get rid of it, so don’t turn up your volume to hear my hypnotic sounds). Enough for my insecurities, this is a demonstration of a really cool way of doing the famous iodine clock experiment. One of the chemicals (sodium thiosulphate) in this version of the iodine clock experiment can determine the time it takes for the solution to magically turn dark. So by adding a slightly different amount of it to each test tube, then mixing the two at the same time, the test tubes turn dark in a predictable order. The video is quite long so I don’t mind you skipping to about 5 min in. Enjoy!

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