science demonstration performed in an outdoor setting with an audience

science demonstration performed in an outdoor setting with an audience. A man wearing a black t-shirt with the words "ZINĀTNES ZONA" is seen conducting an experiment on a table covered with a plastic sheet. The experiment involves mixing two liquids, which causes a large white foamy substance to rapidly expand upwards, creating a visual effect similar to a cloud. Behind the table, a small crowd of people is watching the demonstration. They are of various ages, including children and adults. Many of them are holding up their phones to record the event. In the background, a tent with the "LIDO" logo and some graphic designs is visible. There is also a building with brickwork visible in the backdrop. The demonstration area appears to be a paved outdoor space with black tables set up for the experiment. Several laboratory beakers and containers are on the table. Other items include a roll of paper towels, a thermos, and a white plastic container. The general atmosphere is that of a public event or science fair. The audience seems to be enjoying the demonstration, as can be inferred from the sounds of cheering as the foam expands. One man in the audience is holding a small white dog.