Acids, Bases And Salts
Introduction ‘Sour’ and ‘Bitter’ taste of food is due to acids and bases. If someone has acidity you give them basic solution such as a...
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Metals And Non-Metals
Difference between Metals and Non-Metals Substances can be categorized by comparing their physical and chemical properties. Anodizing -...
Carbon And Its Compounds
Chemical substances containing carbon are referred to as carbon compounds. Carbon is a versatile element that forms the basis for all...
Periodic Classification of Elements
At presently, 118 elements are known to us. Out of these 118, only 94 are naturally occurring. All these have different properties....
Control and Coordination
Introduction Animals and Plants show movement with change in environment. Any change in our environment is associated with movement that...
Reproduction
Why do organisms reproduce? Reproduction is not an essential life process but yet all animals and plants reproduce and spend their energy...
Heredity and Evolution
Introduction Genetics deal with study of Hereditary and Variation. The transmission of traits/character from one generation to next...
Light – Reflection and Refraction
What is Light? We are able to see the objects when light is reflected back from them. Therefore, light is a form of energy that allows us...
The Human Eye and the colourful World
The Human Eye The human eye uses light and enables us to see objects around us. The human eye is one of the most valuable and sensitive...
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