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Transcript
Ocean Salt
BY:
LOUGER JOSEPH
AARON ACEVEDO
EZEQUIEL SANTIBANEZ
CHASE OLSEN
ADINA HENRY
ABSTRCT!!!
At some point in our lives we will all visit the beach.
For many of us, the beach is a place to go with out
family to relax on very hot summer days. Or, sail
away into the Sun-Set. We might even know
someone who is an avid fisher. Someone that spends
most of their time fishing in the ocean. But, have you
ever stop and think for a moment, what would life be
if there was no salt on Earth?? Would the beach we
visit on a regular basis smells or looks as pristine as
they are without salt? Would the food we eat taste
the same?
RESEARCH QUESTIONS
But, before we go any further, we would like to take
a moment to gain more knowledge on the topic of
Salt. For example, what is Sea salt? Where does it
comes from? What makes the Oceans salty? Why are
Oceans more salty than other bodies of waters? What
are some historical facts about Salt? And, is it
possible to deplete the quantity of salt existing
today?
SOME HISTORICAL FACTS ABOUT
SALT????
Sumo wrestlers of Japan throw salt into the ring before a match
to purify and sanctify the area and drive away any evil spirits.
Romans built roads specifically for making the transportation of
salt more convenient. One road, the Via Salaria, led from Rome
to the Adriatic sea, where salt was produced by evaporating sea
water, a common method still used today.
THERE'S stories surrounding salt throughout American history.
Salt is thought to be a major factor in the outcome of many
wars fought on American soil. During the Revolutionary War,
the British used Americans who were loyal to the British crown
to intercept the rebels' salt supply
HISTORICAL FACT 2
IN the War of 1812, soldiers in the field received salt
brine as payment because the government was too
poor to pay them with money. IN THE CASE OF Lewis
and Clark’s expedition to the West, President
Jefferson referred in his address to Congress about a
mountain of salt believed to lie near the Missouri
River, which would have been of enormous value if
the two pioneers could verify the story.
HISTORIAL FACT 3
humans became civilized and moved towards
agriculture and the domestication of animals, the
demand for salt increased. Besides being valued as a
seasoning, THE discovery of the ability of salt to
preserve food. freed us from our dependency on
seasonal availability of food SO we could now
preserve our food. This LET US HAVE possibility for
traveling and carrying our food with us.
Historical Fact 4
As common as salt is to our tables, we
have come to accept its presence in our
lives as ordinary. But in the not-toodistant past, wars were fought over its
possession and civilizations rose and
fell in pursuit of what came to be called
“white gold.”, common rock salt was
given to the common people and the
highly valued crystal salt
Fact 5
blood consists of mostly salt and a full complement
of minerals., early civilizations received the benefits
of salt and its included mineral nutrients.
Fact 6
SALT CAN BE FOUND ON THE SURFACE OF ANCIENT
EVAPORATED SEABEDS LIKE BONEVILLE SALT FLATS
IN UTAH AND IN DEATH VALLEY NATIONAL PARK IN
CALIFORNIA.
SALT DIVIDES FROM THE SEA FLOOR AND FROM
UNDERWATER VOLCANOS
Fact 7
Sumo wrestlers of Japan throw salt into the ring
before a match to purify and sanctify the area
and drive away any evil spirits.
Romans built roads specifically for making the
transportation of salt more convenient. One
road, the Via Salaria, led from Rome to the
Adriatic sea, where salt was produced by
evaporating sea water, a common method still
used today.
WHAT MAKES THE OCEAN SO
SALTY????????
water flows in rivers, it picks up small amounts of
mineral salts from the rocks and soil of the river
beds. This very-slightly salty water flows into the
oceans and seas. The water in the oceans only leaves
by evaporating (and the freezing of polar ice), but
the salt remains dissolved in the ocean - it does not
evaporate. So the remaining water gets saltier and
saltier as time passes.
SALINITY The salinity (salt content) of ocean water
varies. The oceans and seas contain roughly 5 x 10 16
tons of salts. One cubic foot of average sea water
contains 2.2 pounds of salt. The oceans are about 3.5%
salt (by weight). Salinity is generally reported in terms
of parts per thousand (abbreviated o/oo), the number
of pounds of salt per 1,000 pounds of water; the
average ocean salinity is 35 o/oo. The saltiest water is
in the Red Sea and in the Persian Gulf, which have a
salinity of about 40 o/oo (due to very high
evaporation rates and low fresh water influx). The
least salty seas are in the polar regions, where both
melting polar ice and a lot of rain dilute the salinity.
What is Ocean Salt
Where does salt in the in the ocean come
from???
Salt in the Ocean comes from the land.
The elements that makes up salts, such
as chlorine and sodium, started out in
rocks. Water and acids eroded the
rocks, and rivers carried the elements
into the sea. The oceans usually contain
35 parts of salts for every 1000 parts of
sea water.
This is lower in some places where there is a lot of
fresh water coming into the oceans. It is higher
where the sun is very strong and evaporates more of
the water. When all the water is gone ,the salts are
left behind as solids, white crystals. The right amount
of salt is a very important part of our diet. In ancient
times, salt worth it s weight in gold. People used it to
flavor and preserve food .Without salt, the food
would spoil. For this reason .Salt became a symbol of
purity. Some sacrifices in the old testament included
salt.
Why is the Ocean so Salty and other
bodies of salt are not???
According to Anne Helmenstine “The ocean is so
salty because salt was added to the water at a time
when lava and gases were coming out of increase
volcanic activity. The carbon dioxide that is found in
the water came from the atmosphere from not
strong carbon acid which dissolve minerals. When
these minerals dissolves it forms ion which makes
the water so salty.” Basically the rain from the clouds
dissolved the rocks making it run off in to oceans
instead of rivers.
The reason why the ocean is so salty unlike other
bodies of water is because of weathering and
erosion. When water evaporates and goes into the
clouds it condenses. When there is too much water
located in the clouds it precipitates which is just
another word for rain. When it rains instead of going
directly to lakes, ponds, canals, and rivers it carries
the rock in to the ocean in a process called erosion.
While the rain carries the rocks to the ocean it breaks
down the rock into minerals, this process is called
weathering.
Is it possible to deplete all the salt
from The Ocean???
It is not possible to deplete Ocean Salt because salt is
a mineral found in the lithosphere, the rigid outer
most shell of the rocky planet Earth.
Because Sodium Dioxide is a renewable mineral
found the rigid outer most shell of our planet, the
water cycle, one of Earth's natural phenomenon
serves as a vehicle that constantly replenishes Salt or
Sodium Dioxide.
Weathering is another natural process that
replenishes sodium dioxide into the ocean. There are
three different kinds of weathering. They are
Chemical Weathering, Physical Weathering and
Mechanical Weathering. These processes have
constantly erodes Earth's lithosphere therefore
filtering sodium dioxide from from the Earth into
streams, tributaries, and rivers, which eventually
ends up into the ocean.
To remove Sodium Dioxide from the the Ocean, one
will have to completely eradicate this mineral from
the lithosphere. Since Sodium Dioxide is a renewable
natural resource, as far as we know it, it is impossible
to completely remove this mineral from the Earth.