earth science teaching resources

Introduction - The term environment refers to the natural elements that make up the earth and surround living organisms, making life processes possibl..

Introduction - The term environment refers to the natural elements that make up the earth and surround living organisms, making life processes possible. Soil, water, air, light and temperature are the physical aspects of environment and are known as its 'abiotic' components. All plants an..

Everything that we use or consume - food, clothes, vehicles, tools, petrol, furniture, medicines, books, toys, and the infrastructure of electricity, roads bridges, and buildings are obtained from resources on this earth. The only thing one gets from outside is the sun's energy..

Air is an inexhaustible natural resource, essential for the survival of all the living organisms on earth. Air is a mixture of different gases; nitrogen and oxygen are the major component..

Air is an inexhaustible natural resource, essential for the survival of all the living organisms on earth. Air is a mixture of different gases; nitrogen and oxygen are the major components. Air present in atmosphere consists of 78% nitrogen 21% oxygen and remaining 1% is made up..

Earth's crust is rich in inorganic materials . It includes ores, that are used on a large-scale to yield metals such as iron, aluminium, copper, tin, nickel, silver, gold, platinum etc. These minerals are very useful in industrial and technological growth. Some of the metals are used as c..

About 70-73% of earth is covered by water. Water is available in the form of oceans, seas, rivers, lakes, ponds, pools, polar ice caps and water vapour. The main component of hydrosphere is water. Water exists in all the three forms i.e., solid (snow), liquid (water) and gas (water vapour..

Water - About 70-73% of earth is covered by water. Water is available in the form of oceans, seas, rivers, lakes, ponds, pools, polar ice caps and water vapour. The main component of hydrosphere is water. Water exists in all the three forms i.e., solid (snow), liquid (water) and gas (wate..

The Indian fauna includes variety of animal life such as mammals, birds, reptiles, fishes, insects etc i.e. about 800 species of mammals, 2000 species of birds, 420 species of reptiles, 2000 species of fish, 50,000 species of insects, 4000 species of molluscs (Source K.C.Agarwal, 1998). The animals..

Population Control - Increasing population is a serious issue, particularly in developing countries. It is necessary for every generation to produce more off springs because many individuals do not survive to reach the reproductive age due to natural causes. However, man has upset this equation as ..