221 Facts Tell Me Why

221 Facts Tell Me Why221 Facts Tell Me Why is a storehouse of curious facts about the world. The collection will encourage children to go and explore knowledge out there in the world.✨📚

Why is there salt in almost everything that we eat?

Sodium or salt is useful for maintaining the body’s fluid levels. A balance between fluid and sodium results in a healthy heart, liver and kidneys, in addition to maintaining normal blood pressure levels. However, an imbalance in sodium intake can result in imbalance in body functions such as underactive thyroid functions and even cardiovascular disease.

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Why do some medicines have flavours and some don’t?

The taste of medicine depends upon the characters of active pharmaceutical ingredients (API) or its raw material. When the medicines are being produced or created, their bitterness is ensured to a certain extent without affecting the characteristics of the medicine. Some drugs are plant-based and taste bitter because we are not used to eating that

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Why does the clear liquid in an egg turn white when it is cooked?

The proteins present in the clear liquid or the albumen of an egg, undergo a change when the egg is heated or boiled. They are denatured. The existing bonds in the proteins break and new bonds are formed. The chain-like protein (albumen) molecules are folded up into little balls, when it’s cold and give it

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Why is it important to write an expiry date on bottled water?

This is not because it will go bad but because some countries have laws requiring expiration date to liquids. Also, people know how long back it was packed. However, plastic bottles will gradually release volatile molecules from the plastic. Most of these will escape into the air, but some of them will get in water.

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