Sweet drinks are popular, even if they contain a lot of sugar and are not healthy in large quantities. We can taste the sugar very well, but how much exactly does a drink contain? How can you measure how much sugar is dissolved in a sweet drink?
How much sugar is in your drink?
Sweet drinks are popular, even if they contain a lot of sugar and are not healthy in large quantities. We can taste the sugar very well, but how much exactly does a drink contain? How can you measure how much sugar is dissolved in a sweet drink?
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It has to do with something called the “density” of materials or liquids. The less space (volume) a certain amount of weight (mass) of a material takes up, the greater its density. A 100 g bar of chocolate is quite small. By contrast, 100 g of candy floss is quite a big pile. Chocolate therefore has a greater density than candy floss. When we add sugar to water, we also change the density of the water. The more sugar we add, the greater the density.
Our diver works like a hydrometer: The measuring principle is Archimedes' principle: a body is immersed in a liquid until the weight of the displaced liquid equals the weight of the immersed body. The higher the density of the liquid, the more buoyancy it gains and the less deeply it sinks into the liquid.
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