All That Matters
13 Oct 2014
Pencil erasers and pencil marks
The dark black thing that you see inside the pencils is graphite. Graphite is one of the forms of the element carbon. Wood is the protective outer covering surrounding the graphite lead so that it doesn’t break easily. Pencil lead is made of a combination of finely ground graphite and clay. The mixture is then
12 Oct 2014
Silkworms and silk
Production of silk from silkworms is called Sericulture. The lifecycle of any moth goes through many stages. Initial form is that of an egg. The eggs hatch into caterpillars which eat, grow and molt several times. The caterpillar or larva changes into a pupa. From the pupa emerges the adult insect. Silkworms are not worms
11 Oct 2014
Oasis in a desert
A desert traveler is so very happy at the sight of a palm tree at a distance. Because the palm tree signals the existence of what is called an oasis. Oasis is a small patch of vegetation surrounded by the desert, a piece of ‘green’ land in an otherwise very barren land. Oases exist in
10 Oct 2014
Light year made simple
How far are we from the sun? How far are the planets away from each other? The distance between the sun and earth is about 149,600,000 Km. The distances involved are so very huge that astronomers do not measure them in miles or kilometers. If it is done so, then they have to keep a
10 Oct 2014
Songbirds: Know more about them
There are many different kinds of songbirds. Of them, nightingales are the most sensational singers. Not all species of songbirds sing well. The songs of the nightingale have been described as one of the most beautiful sounds of nature. These sounds have been the very reason behind the famous poetries and fairy tales. One good