Chemical Reactions Chemical reactions are happening around us all the time and even in our body. Respiration and digestion in all living organisms, rusting of iron, cooking of...
Atomic Number: Each element is characterized by an atomic number denoted by Z, which is number of the protons. Proton is positively charged and neutrons are charge less,...
Law of Conservation of Mass The law of Conservation of Mass states that matter can neither be created nor destroyed. This law was the result of exact measurement...
Matter can exist in at least four fundamental states viz. solid, liquid, gas and plasma. There are other states also but they don’t exist in our natural environment. One of...
Common Name Chemical Name Alum Ammonium aluminium sulphate Aspirin Acetyl salicyclic acid Battery acid or oil of vitriol Sulphuric acid Blue vitriol Copper sulphate Baking soda Sodium bicarbonate...
When a beam of white light is passed through a prism, white light splits up into different colours. Consequently a coloured pattern is obtained on the screen. This...
The colours of the spectrum of white light are violet, indigo, blue, green, yellow, orange and red (VIBGYOR). The white light is a mixture of different colours. Each...
Our eyeball is nearly spherical with white outer layer called the sclera. Here is a short description of how our eye works. Working of Human Eye The light...
The points between which the eye can see distinctly are called far point and near point. The far point is normally without limit (infinity) and near point depends...
