|
Barrier Lake-A lake
that has formed where rocks have built up to stop water from
flooding away
Basin-a hollow in the
earth's surface, where a lake forms
Canal-An artificial
waterway
Continent-One of the
earth's seven huge land masses
Crater-A bowl-shaped
basin at the top of the volcano
Crust-The hard outer
layer of the earth
Delta-A fan-shaped area
at the mouth of some rivers, where the river splits into
many smaller channels
Drainage Basin-an area
of land from which a river drains the rainwater
Dredge-To scoop up mud
and stones from the bottom of a river or lake
Erosion Lake-A lake, in
a bowl-shaped basin worn away by a glacier
Estuary-The wide part
of a river near its mouth, where the river's fresh water
mixes with salty water from the sea
Fault-A crack in the
earth's surface
Fertile-describing land
that produces good crops
Glacier-A slowly moving
mass of ice
Gorge-A deep
ravine
Hydroelectricity-Electricity
that is made by water driven turbines
Ice Cap-A thick mass of
ice that covers an area of land
Levee-An embankment
built to stop a river from flooding
|
Lock- A part of a canal
or river that is closed off by gates. The water level in a
lock can be changed. A lock is used to raise and lower the
ships that are traveling through it.
Meander-A curve or bend
in a river
Mouth-The place where a
river flows into the sea
Penstock-A water
channel that leads from the wall of a dam to a
turbine
Plateau-An area of
flat, high land
Pollution-harmful
substances that damage the air, water, or soil
Predator-An animal that
hunts other animals for food
Rainforest-A thick
forest found in very warm, wet tropical regions
Rapids-A part of a
river where water moves very fast over rocks
Reservoir-An artificial
lake used to collect water
Rift Valley- A
steep-sided valley formed by land that slopes down between
cracks in the earth's surface
Sewage-Human
waste
Shaduf-A pole, used for
raising water, with a bucket at one end and a weight at the
other (Egyptian)
Source-The place where
a river begins
Tributary-A small river
that flows into a larger one
Turbine -A machine with
blades that are turned by moving water
|
