Sea Life Fish are found both in fresh river water and in salty sea water. Fish swim in water by using their fins and tails and they breathe by absorbing oxygen through flaps called Gills which are located on the side of their heads. Under their scaly skin most fish have skeletons and body organs like a Heart, Liver, Spleen, Intestine, and an Ovary for laying eggs. Some of the species...

Kingdom of Insects     Of all the different types of animals, insects are the largest in number with over a million different types known to man, which have inhabited  Earth for more than 500 million years. They can be divided into 20 different  families i.e. fleas, dragonflies, grasshoppers, moths, leaf  insects, bugs, mantises, flies and mosquitoes, cockroaches, termites, scorpion flies, lice,  thrips, beetles, bees and wasps, earwigs, etc. They vary...

Kingdom of Reptiles Cold blooded animals with scales on their skins are called ‘Reptiles’. The first reptiles were the descendants of the Dinosaurs. There are over 6500 different types of reptiles which can be classified into six broad categories i.e. snakes, tortoises and turtles, alligators and crocodiles, worm lizards, lizards and tarantulas. Of these families the largest is of Lizards with 3800 different types and the one which is facing extinction...

Kingdom of Birds Birds are a marvel of nature, they are the only warm blooded animals which possess feathers and have the capability to fly. Over 9,000 different species of birds live in the world in all kinds of conditions and habitats and feed on all kinds of food. Birds are vertebrates and have skeletons with hollow and light bones. The organs in their bodies include a heart, liver, intestines, kidney...

The Kingdom of Animals   Animals are creatures that are capable of moving, feeding and breeding. An animal is born, it develops by eating food and reproduces animals of its own type and eventually dies. The reproduced animals carry on the same cycle. The kingdom of animals is made up of over 10 million species and is the largest group of living beings known to man. In terms of size they...

The First Animals About 2,000 million years ago small ‘Bacteria’ developed in the seas these were the first forms of life on the Earth. These were followed by, creatures like worms and jelly fish in water and plants and algae on land. Birth of the first plants was important since plants produced Oxygen, which created the Ozone layer thus preventing the Sun’s harmful rays from reaching the Earth and helping life...

Evolution of Life Evolution means to adapt and change’ with the passage of time. In the mid 19th century Charles Darwin, a Naturalist, travelled around the world studying various life forms. His findings were the basis for the ‘The Theory of Evolution’. He stated that the present life forms are the successors of much simpler life forms which existed millions of years ago. As time went by some simpler life forms...

Soil a Necessity for Plants There are various features of soil which allow plants to grow in it. The small garden outside our house may have millions of insects, organisms in it which thrive on other organic and inorganic matter in the soil which makes it fertile for plants. Soil has various layers with ‘Humus’ at the top followed by ‘Topsoil’ and ‘Subsoil’ finally the lowest layer is made of crumbled...