Chpt.5

Front 1

anaerobic digestion

Back 1

type of bioconversion
used by a methane digester

Front 2

barrage

Back 2

A permanent
or floating
dam that seals a
natural bay in
order to use tidal
power.

Front 3

bioconversion

Back 3

The
process that
produces energy
from the waste
products of our
society

Front 4

biomass

Back 4

Waste
products that can
be used in bioconversion.
Examples
are organic material
(such as trees,
plants, grains, and
algae) and wastes
such as manure/
garbage, sewage,
and paper.

Front 5

creosote

Back 5

A tarlike
substance that can
build up on the
walls of a chimney
when wood is
burned.

Front 6

electrolysis

Back 6

The
process of separating
the
hydrogen-oxygen
bond in water
using an electrical
current.

Front 7

ethanol

Back 7

Ethyl
alcohol, sometimes
referred to as grain
alcohol

Front 8

fermentation

Back 8

The
decomposition of
carbohydrates
found in plants
with the production
of carbon
dioxide (CO) and
acids.

Front 9

fish lift

Back 9

A giant
elevator-like device
installed on
dammed rivers to
help fish return
upstream during
sPawrung season.

Front 10

gasohol

Back 10

An automobile
fuel made
from grains.

Front 11

geothermal energy

Back 11

heat from the earth.

Front 12

heat pump

Back 12

An
application of the
use of geothermal
energy for residential
heating and
cooling. A system
of these pumps
consists of pipes
buried in the
shallow ground
and located near a
home. Water flows
through the pipes
and conducts heat
from the ground
for transfer into the
home.

Front 13

hydroelectric energy

Back 13

the use of flowing waters from
waterfalls and dams to produce electricity.

Front 14

hydrogen

Back 14

The first
and simplest
etrement on the
periodic table. It is
one of the most
conunon elements
in the galaxy.

Front 15

hydrogen sulfide gas

Back 15

Agas that
smells like rotten
eggs, found within
the steam of geothermal
energy
plants.

Front 16

magma

Back 16

Molten
rock located miles
beneath the earth's
surface.

Front 17

mantel

Back 17

Rock that
conducts heat
coming from the
earth's core.

Front 18

methane digester

Back 18

converts shredded organic materials into methane
gas that can be used for heating, used for power generation, or purified
and stored for distribution

Front 19

methanol

Back 19

A cleanburning
liquid
used as fuel to
power vehicles. It
can be made from
nonrenewable
sources of energy,
such as coal, or
from renewable
sources of energy,
such as wood,
plants, and
manure. Methanol
produces more
energy than
ethanol, per
volume, and bums
more slowly than
gasoline.

Front 20

methyl alcohol

Back 20

Methanol is a clean-burning liquid. It is also known as methyl alcohol.

Front 21

nacelle

Back 21

An enclosure
that houses
the gearbox, the
generator, and a
variety of equipment
necessary to
keep a wind
turbine properly
positioned into the
wind and spinning
at a safe speed

Front 22

overshot waterwheel

Back 22

A
water-wheel that
relies on an elevation
change and
makes use of the
weight of the
water, in addition
to the water's
force.

Front 23

penstock

Back 23

A dam
tunnel through
which stored water
rushes to a water
turbine.

Front 24

pyrolysis

Back 24

Tlne
process of separating
the
hydrogen-oxygen
bond in water
using heat.

Front 25

tidal fence

Back 25

A
barrier intended to
prevent the power
of tides from
escaping back into
the ocean.

Front 26

undershot waterwheel

Back 26

A
waterwheel that
does not require a
significant elevation
change and
primarily makes
use of the force of
flowing water.

Front 27

waste-to-energy plant

Back 27

A plant that
shreds and burns
waste. The heat
energy is then used
to produce electricity
or for industrial
processes

Front 28

wind turbine

Back 28

A
propeller driven by
the wind and
connected to a
generator. The
wind makes it tum
the generatol,
which produces
electricify.