The science siblings from Somerset discuss soluble salts. That’s a lot of acids. There’s a good and reasonable high amount of giddiness. They try putting the contents of chemistry to music to see if that helps with the learning, the success is… well, we’ll leave that for you to judge. Ron is in a grump and won't tell Laura what the problem is, which goes down badly.

Laura is in a Travelodge recording this episode so has gone a little stir crazy. We have a quick chat about all the acids she puts on her face without knowing at all what they are. There’s the faint whiff of a practical experiment and then it dies a death.

They cover the PH scale, acids and alkalis and lots and lots of karaoke. Then in the quiz, they argue over whether or not Laura is learning science or simply reading science back out of a book. The quiz REALLY falls apart. Like REALLY falls apart.

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