Year 6 Science are learning about distillation and were shown how to separate ink from water using a condenser.
As the water boils at around 100 degrees, it evaporates, and condenses in the double tube (the condenser) which is cooled using a pipe with water flowing in.
The distillate is then collected in the beaker as pure water. The ink is left behind as it doesn’t boil until it reaches 196 degrees.
The boys loved the lesson, and Year 5 were so curious that they then had a go as well!