We are used to seeing trucks dumping salt on the road during periods of extreme cold that we almost forget to wonder wh…

As its name suggests, the purpose daylight savings time (changing the time) is to make better use of daylight and there…

Domestic cats have a strong aversion to water. The main reason for this is their fur. Cats can instinctively swim and a…

Eggshells are mainly made of lime, lime is white, that's the basic color of the eggs. Whether a chicken lays white …

The ozone layer blocks a large part of the sun's rays and prevents too much ultraviolet radiation from reaching the…

The ancient Greeks were the first to name the Black Sea, and they called it "Inhospitable Sea", since the sea…

The day lasts 24 hours just because people wanted to share it like this. There is nothing in nature about hours, minute…

After stinging the honeybees cannot retract their stinger, so they die soon after. These bees are no more desirable in …

Peacock Bird is a symbol of resurrection, renewal, and immortality. Peacocks are a species of birds that include two …

The lever is the most wonderful mechanical element in the world. The expression, lever, is not employed in the sense of…

The land that we need for growing food is very important. We can't afford to spoil it. There are many ways in whi…

Dead animals and plants rot and decay. In swampy areas, for example, dead plants fall into the water. As they decay, th…

What is the Composition of Air? About one-fifth of the air is oxygen.     Human beings and other animals wou…

The world is changing around us all the time. There are physical changes as matter changes from solid to liquid t…

Air is a mixture of many different gases.  These different gases are very useful. But they must be separated from ea…

We cannot see infrared rays, but we can feel them as heat. It is the infrared rays in sunlight that help to make us f…