Albedo: the percentage of solar radiation reflected back into space

Absorbed Energy: energy from the sun that is absorbed by materials and converted to heat energy (e.g. pavement absorbs a lot of the sun's energy)

Biomass Fuels: fuels that come from living (or once living) organisms

Conduction: the transfer of thermal (heat) energy between neighboring molecules in a substance

Convection: transporting heat energy from a lower, hotter region to a higher, cooler region

Fuel: anything that can be consumed and used as a source of energy

Reflected Energy: when the sun's energy is bounced back from the surface of a material (e.g. a mirror or ice reflects a lot of the sun's energy)

Transmitted Energy: when the sun's energy is able to pass through a material (e.g. glass transmits the sun's energy)