Heat changes exothermic and endothermic reaction

Energy is conserved in chemical reactions. One way of stating the ‘law of Conservation of Energy‘ is to say the […]

Irrigation and drainage

Irrigation is defined as the artificial application of water to soil or land for farming puposes.  In other words, irrigation […]

Surveying and planning of farmstead

MEANING OF FARM SURVEYING Farm surveying is defined as the process by which measurement of land is made on the […]

Simple Farm Tools

SIMPLE FARM TOOLS These are simle, handy tools used mainly by peasant farmers.  They are designed to help the hands […]

Farm Machinery and Implements

Farm Machinery includes various types of machines and implements used in the farm. These include tractors, ploughs, harrows, cultivators, ridgers, […]

Soil types and properties

Soil formation is greatly controlled by five major factors which are (i) Climate  (ii)Parent materials  (iii) topography  (iv) biotic (living […]

SS2 First Term Agricultural Science Senior Secondary School

Welcome to Stoplearn.com online secondary school 3 SS3 first term. Here you can learn Chemistry for Senior Secondary School online […]

faraday’s laws of electrolysis and calculations

Charge flow during electrolysis   The coulomb is the electrolytic unit of charge. A current of one ampere is the […]

Electric cells and electrolysis of specified electrolytes

The passage of electricity through the electrolytes in their molten or dissolved state can cause chemical changes under suitable conditions. […]

Electrolysis

When an electric current is passed through an electrolyte solution, the ions of the electrolyte undergo chemical changes at the […]