Nutrition. The nutrients in food can be divided into certain groups—proteins, carbohydrates, fats, vitamins, and minerals. Water is sometimes considered a nutrient. Proteins are necessary for…
Magnets can do strange things—that’s what makes them such fun to play with. They can stick to each other. They can make nails or pins hang on to each other, like people holding hands. They can even…
Stockholm, the capital of Sweden, is mostly a city of islands and bridges. In fact, it is built on more than a dozen islands that are connected by about fifty bridges—which is why the city is often…
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