The Water Planet

Journal WP-1
Answer the following questions in complete
1. Why is water important?
2. What are some uses for water?
a. Major Uses
1. Household
2. Agriculture-irrigation
a. History
1. China 3000 BC irrigation by flooding rice
2. Egypt, 2000 BC-Bucket device invented to
raise water
3. Assyria, 700 BC-Stone aqueduct used by
king for plantation
4. Mexico, 500 AD-raised plots with a canal
5. USA, 1870 windmills bring water
6. Israel, 2000-drip irrigation in the desert
directly to roots
3. Industry-used to make products but can be
recycled to cool machinery
4. Transportation-goods and boats
5. Recreation-boating, swimming, etc
b. Water is used by living things to grow,
reproduce and carry out life processeslike photosynthesis
• 66% of the human body is made up of water.
• At just 2% dehydration your performance
decreases by around 20%.
• We should drink at least 1.5 litres of water a
c. Groundwater is water
that fills cracks and
spaces in soil helping to
bring nutrients to the
soils and organisms in the
1. Two-thirds of our planet is
covered by water.
2. 97% of the water is saltwater
(dissolved salt and minerals).
*3% is freshwater
3. The majority of freshwater is
beyond our reach, locked into
polar snow and ice (about
4. This leaves less than 1% for us
to drink.
• Evaporation occurs
when the liquid
form of water from
bodies of water
change into the
gaseous form of
• Evapotranspiration
is the water lost to
the atmosphere
from the ground
• The transpiration
part is talking
about evaporation
of water from plant
• Sublimation is when
a solid changes
directly into a gas
• It is most often
used to describe
the process of snow
and ice changing
into water vapor in
the air without
first melting into
• Condensation is the
change of water
from its gaseous
form (water vapor)
into liquid water.
• This is crucial
because it is
responsible for the
formation of
• When cloud particles become too heavy to
remain suspended in the air, they fall to the
earth as precipitation.
• Snowmelt runoff
is a major
component in the
water cycle. It
“runs off” either
side of a divide
which is a ridge
or continuous
point of high land
into a drainage
• Infiltration is
when the water
enters into the
subsurface of soil
and rocks. This
Some soils are
are impermeable
• As part of the
water cycle, ground
water is a major
contributor to flow
in many streams
and rivers and has
a strong influence
on river and
wetland habitats
for plants and
• Most of the water in the
ground comes from
precipitation that
infiltrates downward from
the land surface
• Large amounts of water
are stored in the ground.
In a region called the
Aquifer. The upper layer
of an aquifer is called a
water table
Groundwater can be
brought to the
surface naturally by
a spring, an
artesian well or a
As water moves
through the water
cycle, it is “stored”
in various ways in
the different
spheres on Earth
• Oceans, seas, and
other bodies of
water contain about
90% of the
moisture in the
• Other 10%=plants,
• 3,100 cubic miles
of water.
• Includes all water
on earth.
• 1.35 million cubic
kilometers of water
on earth.
• Not a single drop
of water can be
found anywhere
else in the solar
• The solid part of
• Is composed of
minerals and
contains the
• Is all living
• Covers the top 200
meters of oceans
and seas.
•Study your notes
from the last 2
days. We will have
a quiz or journal of
some sort
notes! BE READY!!!!!