any resource, such as wood, wind, water or solar energy, that can or will be replenished in a short period of time.
a natural resource that cannot be replaced or that replenishes over thousands or millions of years
coal, oil, natural gas, and other fuels that are ancient remains of plants and animals.
process in which an atom's nucleus is split into two nuclei releasing large amounts of energy
the process in which two atomic nuclei combine to form a larger nucleus, releasing huge amounts of energy
a reaction in which the material that starts the reaction is also one of the products and can start another reaction
energy from the Sun that is clean, inexhaustible, and can be transformed into electricity by solar cells
The energy captured by transforming the motion of air into electrical energy using a turbine
A colorless, flammable gas, occurring in petroleum and natural gas: used chiefly as a fuel.
A resource that is used in heating systems, in stoves, ovens, and some vehicles. It is the cleanest burning fossil fuel.
an electrochemical cell that uses replenishable substances such as hydrogen or oxygen or water to produce electricity
cells made of several layers of light-sensitive materials which convert sunlight directly into electrical energy
processed fuel made from vegetable oil or animal fats which can be used in unmodified diesel engines