1.You need: 2.Make a hole in one end of the box. Cut two slits in each side. 3.Draw round the end of the box. Cut…

Home Soil Test: You will need: a handful of garden soil or forest floor soil water a small stick a small glass j…

What is a Bacteria? Bacteria are very small living things that have only one cell. Some scientists classify bacter…

Despite their dramatic behavior, thunderstorms are the smallest of the different kinds of storms. They average aro…

Water is not only the most common substance on earth, it is also one of the most unusual. No other substance…

Did you know that nearly three-quarters of the surface of the earth is covered with water?  There are vast oceans lik…

Learn how to make a  Megaphone  -  Cardboard Megaphone - excerpt from the book "The Scientific American Boy" …

Have you ever swum in the sea and accidentally swallowed some sea water? It probably made you gag and cough. Sea wate…

Did you know that light rays can cut through a steel plate?  What sort of light can do this? The answer is laser li…

Authorities claim that the best materials from which to make bows are mulberry, sassafras, Southern cedar, black locust…

The toy motor-boat shown in Figs. 48 and 49 is propelled by a tin propeller run by a rubber-band motor. A handful of ru…

Secure a tin can, or a pasteboard box, about 2 in. in diameter and 2 in. or more in height. Punch two holes A, Fig. 1, …

"Thirty days hath September, April, June and November," etc., and many other rhymes and devices are used to a…

Making a Book Cover - How to Make a Book Cover Out of Paper Book covers become soiled in handling and especially scho…

HOW GLACIERS FORM? Some of the snow on a high mountaintop melts and runs off. But much of it stays all year round. …

Volcanoes are a special kind of mountains that actually build themselves! Volcanoes are made of red-hot rocks that pou…

Why the earth is round in shape? Why does the earth spin? Why does the earth rotate around the sun? The answers t…

How does a light bulb work - for kids? Have you ever looked closely at an ordinary electric light bulb? Hold it car…

There was once a shoemaker who worked very hard but was also very poor. At last, all he had was just enough leather to …