“I don’t really understand why water has so many properties on different scales ranging from very large and cosmic to very small quantum and quarky - Could you help by zooming in and out on water to explain what is known about it? Asks Neil Morton in Stirling. “Why does boiling water sound different to cold water?’ asks Barbara Dyson in Brittany in France Ollie Gordon, in Christchurch in New Zealand, wants to know ‘why water is essential for all life as we know it?’ And many more questions on the weirdness of water are tackled by super science sleuths Hannah and Adam helped by quantum physicist Professor Patricia Hunt, at the Victoria University in Wellington in New Zealand, science writer and author of ‘H2O – a biography of water’ Philip Ball and physicist and bubble expert in the Department of Mechanical Engineering at UCL, Dr Helen Czerski. Presenters: Hannah Fry & Adam Rutherford Producer: Fiona Roberts