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Radiation, Emission and Radiation by Different Surfaces Use this visual Slides to understand the concept of Heat Transfer before you […]

The Concept of Heat and Temperature Heat is a form of energy that moves from one point to the other […]

Meaning of Oil Spillage Oil spillage is the release of a liquid petroleum hydrocarbon into the environment, especially marine areas, due to human activity, […]

Uses of Energy Solar energy is a universal source of light to planet earth. The plants also use it to […]

The following are the sources of energy: Energy from the sun (solar energy) Wood (fire wood) Coal Electricity Fossil fuels […]

Energy is the ability or capacity to do work. Its unit is Joules. Types of Energy Kinetic and Potential Energy Slides: […]

Sources of Electric Current Electric current can be generated from the following sources: Chemical energy:Electrical cells store chemical energy. There […]

The molecular kinetic theory can be used to explain a number of phenomena. Some of these phenomena are: Brownian Motion […]

The Nature and Size of Molecules All matter is made up of tiny particles called molecules. These molecules themselves are […]

Definition of an Atom An atom is the smallest indivisible particle of an element which can take part in a […]