Non-renewable energy means the energy source will eventually run out. Most of the non-renewable energy sources belong to the fossil fuel category. Coal, natural gas, crude oil and liquid petroleum gas are examples of non... More »

Renewable energy sources are sources of energy that are theoretically inexhaustible and not derived from fossil fuels or nuclear sources. Examples of renewable energy sources are wind, the sun, water, geothermal and biom... More »

The Union of Concerned Scientists says that renewable energy is advantageous because it produces minimal global warming emissions, improves public health, is a perpetual energy supply and ensures stable energy prices. Wi... More »

A sound source of high energy emits waves, just like any other source of energy. Waves are defined only by their frequency and wavelength. High frequency means high energy and short wavelength means high energy. Sound ha... More » Science Physics Electricity

According to an experiment reported at Exploratorium, a pickle can be used as an energy source to power small devices such as a light bulb or buzzer because of its ability to push and pull electrons. The pickle is high i... More »

Convection is the heat transfer due to the motion of a fluid, such as a gas or liquid, that carries heat energy away from a heat source. Conduction instead occurs between materials in contact with each other without any ... More »

Wind energy is a form of renewable energy produced through machines that use wind as their power source. Wind energy is only possible because of the sun. More »