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 do not emit carbon emissions, and these energy sources provide jobs and benefits to economies, according to the Union of Concerned Scientists. The disadvantages of renewable energy include high i... More » Science Environmental Science Human Impact

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 »

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 »

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 »

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