We begin with some musical chat and for once it’s Ron procrastinating because it’s him that doesn’t want to get onto the science. Laura gets worried about a possible tricko seed being planted but Ron insists she won’t see it coming. They try their best to discuss every subject on the planet (including the death of Princess Diana) before finally getting round to chatting about chemical analysis.

Laura enters a gel pen blue phase and they finally get on to looking at qualitative and quantitative chemical analysis styles. It doesn’t last long and they’re trying to remember why Abi Titmuss is famous and how many words there are in the English language.

After pretty much giving up on chemical analysis they return to one of their favourite rows: would Laura be a brilliant engineer inventor. During this familiar sibling argument they slag off Da Vinci quite a lot and Laura becomes a passionate defender of the wheelbarrow. You will hear the most passionate argument about apple factories you would ever hear.

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