| biomass |
organic matter, such
as wood, that is living or was recently alive |
| conduction |
the direct transfer of
heat between objects that touch |
| convection |
the transfer of heat
as a result of the mixing of a liquid or a gas |
| electric energy |
the kinetic energy of
moving electrons produced either by generators or electric cells |
| energy |
the ability to cause
changes in matter; the ability to do work |
| fossil fuel |
a fuel formed from the
remains of once-living organisms |
| fusion energy |
the energy released
when the nuclei of two atoms are forced together to form a larger
nucleus |
| geothermal energy |
heat from inside the
Earth, usually carried to the surface by superheated water and steam |
| heat |
the transfer of
thermal energy from one substance to another |
| hydroelectric energy |
electricity generated
from the force of moving water |
| kinetic energy |
the energy of motion,
or energy in use |
| mechanical energy |
the energy of motion
or position |
| natural gas |
a gas, methane,
usually found with petroleum |
| nonrenewable resource |
a resource that can't
be readily replaced once it is used |
| nuclear energy |
the energy released
when the nucleus of an atom is split apart |
| potential energy |
the energy an object
has because of its place or its condition |
| renewable resource |
a resource that is
replaced as it is used |
| reusable resource |
a natural resource
that is renewed by natural cycles and can be used more than once; an inexhaustible
resource |
| solar energy |
the energy of sunlight |
| thermal energy |
the total internal
kinetic and potential energy from the random motion of particles in
matter |
| tidal energy |
a form of
hydroelectric energy that produces electricity from the rising and
falling of tides |
