Kids Questions & Answers

In a recent survey, an electric nail file, which gives a smooth finish to nails, all for a whopping £250, was voted the most pointless gadget of all times. While laser-guided scissors which helps cut a perfectly straight line came in second, electric candles were third.

There are the towering television masts, some of which are higher than the Eiffel Tower. But to find the answer you have to go to sea, for oil rigs are more massive than any steel structure on land. Some of them may contain five times as much steel as the Eiffel Tower, and match it in height, even though most …

On June 26, 1974, a 10-pack Wrigley’s chewing gum was the first product logged in a grocery store by a barcoding system using the modern universal product code. Later that year, the Uniform Grocery Product Code Council became the UPCC which regulates the issue and use of all universal product codes. At the same time, companies pursued the use of …

The number of stars which one can see without telescope is about 6,000. Before the invention of telescope, only six magnitudes or degrees of brightness of the stars were recognized. Today with the help of telescope stars up to 21st magnitude can be seen. There are 22 stars of the first magnitude. The brightness of all stars is Sirius, having …

The thigh bone. In an adult it is about twenty inches long.

An important development in the history of education was the spread of gas lighting in the early 1800s. This followed the invention of coal gas by the British engineer, William Murdock, in 1792. Gas lights were much brighter than oil lamps. They illuminated whole rooms adequately at night and evening classes sprang up. As education for most people at this …

With a little training, we can all swim underwater as freely as a fish. All we need is an aqualung, which consists of portable breathing equipment carried by the diver. The aqualung supplied air naturally as the diver breathes in and out. Wearing froglike fins, aqualung divers can swim quickly with little effort. Before the aqualung was developed, divers had …

The wild goldfish is a very common fish from China, usually green or brown in colour. About a thousands years ago the Chinese noticed that red forms of the wild goldfish occasionally appeared. They started to keep these more attractive forms in ponds and bowls and managed to breed them. Since then goldfishes have always been popular as pets and …

The sun we see everyday is just one of the thousands of stars we see at night. Such a huge collection of stars is called a galaxy. And the stars we see belong to a galaxy called the Milky Way. There are millions of galaxies in the sky, most of whom are hidden from our view. However, there are some …

The animal kingdom is divided into those animals which have backbones, vertebrates, and those animals which do not have backbones, invertebrates. In terms of the numbers of animals which have ever lived throughout the history of the Earth, the invertebrates are much more common. Many invertebrates had external shells made of chalk-like materials to protect them. Others had internal skeletons …