The photographer and expert on the African continent, Nick Brandt, produced some images of the statues of animals that died in the lake, his work went viral on the internet and generated curiosity to understand what this lake has. But appearances can be deceiving: its waters hold a fatal secret.ĭue to the rare chemical composition, the lake ends up petrifying the animals that enter it. Lake Natron, situated in northern Tanzania, close to the Kenyan border, in the Great Rift Valley, is one of the most peaceful places in Africa. Want more Saturday Science? See all of our at-home activities on the blog or on Pinterest.With high temperatures, the lake turns any animal that decides to take an unpretentious dip into stone. When you remove water and microbes from the picture, mummies bodies’ don’t decompose. It also has anti-microbial properties, which means it kills bacteria and fungi. Salt is a desiccant, which is a chemical that removes water from things. The Egyptians would dry their mummies with Natron in windy tents in the dry desert air for 40 days before wrapping them for their final burial. Natron, which was used in ancient Egypt to preserve mummies, is a natural salt mixture containing sodium carbonate decahydrate (soda ash), sodium bicarbonate (baking soda), sodium chloride (table salt), and another salt called sodium sulfate. Which salt mixture keeps the apples from smelling bad? Try the experiment with whole apples too: peel and core one, core another, and leave one intact before covering them with salt mixture.You can weigh your apples before drying them to see how much water they lose.If you'd like, return them to the cups with some of the appropriate dry salt mixture to let them go for another week.Exhume them after a week and observe their differences.Add a loose top to the cups such as foil cupcake holders.Cover the apples with the appropriate salt mixture (based on the label of the cup).
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