Science magazine for kids

Who, what, where, when & how - Now displaying 41 to 50

What is the origin of OK?

Is it from the Greek ‘ola kala’ meaning ‘it is good’, or the initials OK written by freight merchant Obeidah Kelly on the documents he checked? Or could it be a mere accident of language! Read on ...

With millions of books and thousands of publishers, how does one identify a specific title or special edition? International Standard Book Numbering is a simple method that is used to identify books. Read on ...

What is Artificial Intelligence?

Scientists are creating new software programs which try to recreate the process of human learning in a computer, in an attempt to make them 'think'. Read on ...

What is the Weight of Air?

Sitting, standing, inside, outside, there is an immense weight over your head, but you don't feel it! This is the weight of the atmosphere - or air, as we know it. Read on ...

What is the Trail behind a Jet?

No, the white trail left behind by a jet aircraft is not the fairies' trail - it is actually a cloud! Read on ...

Why's it hard for Ketchup to flow?

Overturn a sauce bottle untouched for some time, and the sauce will either not flow, or fall as a blob. But shake the bottle and the gooey ketchup will flow more freely! Read on ...

Why is the Dead Sea dead?

The Dead Sea is a lake that lies between Jordan and Israel. The water in the lake is so dense, it cannot support any aquatic life. Read on ...

What Makes the Egg Shell so Strong?

Egg shells can be crushed with very little force. Then how is it that they don't even crack when a mother hen sits on them to hatch them? Read on ...

How Does Ice float?

Water behaves strangely on being cooled. All substances contract on cooling. But water starts expanding after being cooled beyond a certain point... Read on ...