COAL
Coal, comprising mainly carbon of vegetative origin, is one of the oldest forms of power. It provided the basis for the Industrial Revolution. Its importance as both fuel and raw material was greatly enhanced with the invention of the steam…
INTRODUCTION TO MINING AND POWER
Minerals are natural, chemical substances which make up the rocks of the earth’s crust. They have certain physical and chemical properties that differentiate them from one another. There are well over 2 000 known minerals scattered very unevenly throughout the…
CARE OF THE EYES, NOSE AND EAR
Care of the eyes Use good light when reading or doing any fine work such as sewing. Poor light strains the eyes. Do not rub the eye when you have something in it. Do not wash your eyes with disinfectant…
CARE OF THE HAIR
The different parts of the human body are very important for healthy life. These parts require good care and grooming so that they can function properly. You need to understand how to take care of each of these parts in…
Study Guide
