TV professor Robert Winston has won his fourth Royal Society young people’s book prize with Home Lab, a collection of scientific experiments done from home.

The judges, who were aged between six and ten, selected Winston’s latest book from a shortlist, making it four wins in 12 years for the London-born doctor and scientist, who was created a life peer in 1995.

In the foreward, Winston talks about how he got interested in science, saying: “What most interested me was doing my own experiments.”

He said he remembered the excitement he felt “when I realised that I could write secret messages using juice as an invisible ink. Seeing my words appear when I heated the paper was something I still find slightly weird and a bit of a thrill”.