| A | B |
|---|
| aqueducts | an artificial channel for water; especially one for carrying a large quantity of flowing water |
| chemical energy | the energy stored in the bonds between atoms in molecules |
| cisterns | an artificial reservoir or tank for storing water usually underground |
| coal | solid form of fossilized plants, consisting of amorphous carbon used as fuel |
| conservation | controlled use or systematic protection of natural resources |
| electrical energy | the energy of moving electrons |
| energy | useable power that has the capacity for doing work |
| energy transformation | the change from light and heat to mechanical, chemical, and electrical energy |
| finite | enduring for a limited time only |
| forestry | the science of cultivation, maintaining, and developing forests |
| force | the strength of a push or pull one body exerts on another |
| fossil fuels | formed from ancient plants & animals; coal, oil, natural gas |
| generate | to bring into existence |
| geothermal | energy obtained from hot magma beneath the Earth's surface |
| hydro | pertaining to water |
| hydroelectric | of or relating to production of electricity by waterpower |
| hydrosphere | all the water of the Earth (usually referring to the oceans) |
| kinetic energy | moving energy |
| mechanical energy | the energy involved in the motion of machines |
| motion | a change of position |
| natural gas | a mixture of hydrocarbon gases that occurs with petroleum deposits; used as a fuel and in manufacturing organic compounds |
| nonrenewable energy sources | fossil fuels |
| nonrenewable resources | a resource, such as oil, coal, or natural gas, that can be used up faster then can be replenished |
| nuclear power | energy found in the nucleus of an atom |
| oil | petroleum derivative used for fuel |
| pollution | contamination of air, soil, or water by the discharge of harmful substances |
| potential energy | stored energy |
| renewable energy sources | wood, hydro, geothermal, tidal, and solar |
| renewable resources | a resource that is in great abundance and is continually produced (such as wind, sunlight, or lumber) and that can be replaced naturally if used wisely |
| reservoirs | a place where something is kept in store; especially an artificial or natural lake where water is collected as a water supply |
| solar energy | electromagnetic radiation from the sun |
| thermal energy | the energy of moving and arrangements of molecules in a substance |
| turbines | an engine whose central driving shaft is fitted with a series of blades spun around by the pressure of a fluid |
| waste management | the control and regulation of waste |
