The Brain and Nervous System The human brain is more complex than any computer known to man. In living creatures, mammals have bigger brains and man has the biggest in relation to his size. An average human brain would weigh about 1.5 kgs and would have a jelly like texture made up of billions of living units called nerve cells or neurons. It is housed in the topmost part of the...

Our Body and Its Systems Our body is a wonderful machine made of billions upon billions of tiny cells. Our body is capable of many feats which include coordination between its various parts and balancing in various situations. The cells in our body are so tiny that they can only be seen with the help of a microscope. Every second millions of cells in our body are dying and millions are...

Crops of the World GROUNDNUTS are grown in many parts of the world, in some countries they are eaten after being roasted and salted. Oil is also extracted from these nuts and is used as a cooking medium in many countries. Besides this groundnuts are also used as animal feed. SOYA BEANS are beans which are very rich in proteins and as such provide nourishment to both animals and humans, edible...

Asia Asia is the largest continent on Earth, it occupies one third of the land surface. It has Africa and the Indian ocean to the south, the Arctic ocean to the north, the Pacific ocean in the east and Europe in the West. Asia is inhabited by two thirds of the world population. There are about forty nations in Asia and a large number of languages are spoken by the people....

Europe The European continent is located north of the Mediterranean sea with the Atlantic ocean on it’s west. The eastern borders of Europe are formed by the Ural mountains and the Norwegian and Barents sea are in the north. Also in the north is a large peninsula shaped like a hook. It comprises of Sweden and Norway and located further south is Denmark. The three countries of Sweden, Norway and Denmark...

Africa The continent of Africa is the world’s second largest continent and has about 52 nations in it. It has the Atlantic Ocean to its west, the Mediterranean Sea to its north, the Red Sea to its North east and the Indian ocean all along the Eastern coast. The northern part of this continent is covered by the world’s largest desert the Sahara, and West Central Africa is covered with thick...

North America The North American continent comprises of Canada, United States of America, Mexico etc. It has the Atlantic ocean on its East, the Pacific ocean on it’s west, the Arctic ocean in its north and the continent of South America in the south. All along the western coast of North America lie the Rocky Mountains, this chain of mountains is the second largest in the world. The northern half of...

Antarctica and the Arctic Circle On the South pole lies a large mass of land, as big as the United States of America covered with snow and ice. This continent is called Antarctica and it covers an area of more than 13.5 million sq. km. The highest land mass in this continent is called Vinson Massif and it rises over 16.000 feet above sea level. The ice cover is more than...