Light
Summary of light Solved exercise of light Summary We need light for everything probably except when we sleep. The sun is the earth’s primary source of light. light is essential for the existence of...
Category: Science
The Sky
Summary of sky Solved exercise of sky Summary The sky (also sometimes called celestial dome) is everything that lies above the surface of the Earth, including the atmosphere and outer space. When the sky becomes clear...
Garbage in, Garbage out
Summary on garbage in garbage out Summary Garbage refers to bodily waste products, purely liquid or gaseous wastes, nor toxic waste products. we throw out so much rubbish or garbage every day from our...
COMMUNITY – GAMES
Summary on community Summary Community has given rise to games to relax and spend free time, people have made games. Games build the relationships among individuals in a community. It provides an opportunity for...
COMMUNITY
Summary of community Solved exercise of summary of community Summary Group of people living in a specific area is called a community. Members of the community are interdependent on each other for many things....
ELEMENTS, COMPOUNDS AND MIXTURES
Matters available in nature consist of molecules or compound molecules. When these compound molecules are subdivided, elements are obtained. The smallest unit of the element is called an atom. Depending on the atoms present...
ACIDS,BASES AND SALTS
In our daily life we make use of variety of substances, they are differ in taste and physical state. The substances may be either acids ,bases or salts. ACIDS The word acid comes from...
Pollution
Summary of pollution Solved exercise of pollution Summary These human as well as natural activities have been continuously bringing about degradation of the environment. Such changes have spoil the quality of the environment thereby...
Agriculture
Summary of agriculture Solved exercise of agriculture Summary The practice of growing plants on a large scale for food or other purpose is called agriculture.Agriculture is the main occupation of the farmers. So farmers...
HARD WATER AND SOFT WATER
Summary of hard water and soft water Exercise of hard and soft water Summary Hard Water: If it contains dissolved salts of chlorides, sulphates and bicarbonates of calcium and magnesium. Example: water of some...
