Toxic Waste
.... factory, a major producer of chemicals, showed contamination from dioxin. Dow undertook a 3 million dollar study of the material. The company announced that Dioxin is less health and life threatening.
High-temperatures are used to reduce the toxicity of waste. These processes use plasma technology to make the waste more environmentally friendly. Plasma treatment reach temperatures up to 1,650o F. In the United States incineration is a primary way to get rid of liquid waste. This process eliminates waste in two stages. One is partially burning the waste with insufficient air and then they burn it again with excess air at hi .....
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Science Experiment On Odor Changes Of Various Chemicals
.... vinegar. Vinegar is a sour liquid with a pungent odor, containing acetic acid, and is made by fermenting dilute alcoholic liquids such as cider, wine, or other fruit juice. Vinegar is used as a condiment, preservative, and in certain medicines (2: 1214).
Ethyl Alcohol is also used in medicines. The formula for this is C2H5OH. It is a colorless liquid with mild characteristic odor. Also known as ethanol, the compound is miscible in all proportions with water or ether (1: 361-362). When ignited, ethyl alcohol burns in air with a pale blue, transparent flame. While burning, it produces H2O and CO2. The vapor forms an explos .....
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The Leaf-Cutting Ants
.... a total yearly loss of $5 million in the United States (unison services. 1998).
There are about 9,500 named species of ants. These ants are divided into 16 sub families and 300 genera, all which belong to the family called Formicidae, the family of ants (Hoyt. 1996). The leaf cutting ant belongs to the genus called Atta. There are fifteen different species of Atta and all are limited to the new world (Holldobler & Wilson, 1994).
The leaf-cutter ant looks pretty much like a regular ant in North America except that it is a little bigger than most ants. Looking at the ant in the untrained eye a person usually perceives that it is .....
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Environmental Issues Associated With Vehicle Use
.... thousand deaths and up to 20,000 hospital admissions every year.
Acid rain is another serious problem, helped along with the increased usage of motor cars. The increased acidity of the precipitation is down to contamination by carbon dioxide, sulphur dioxide and nitrogen oxide, all of which the car is largely responsible for. During driving, a large percentage of lead is emitted into the atmosphere and although most of it is ultimately deposited on the ground, appreciable concentrations can enter the air and be transported considerable distances. Young children are permanently affected by lead and can suffer mental retardation .....
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The Mars Alive Documentary
.... contributed to the findings on Mars;
they have helped figure out that the temperature is cool and that the
atmosphere is thin. America’s NASA deeply desires for Mars to be a useful
planet. Many take-offs have been launched in recent years to carry out
this goal. Mar’s Direct is one plan where a rocket to Mars was to exploit
the local resources on the planet. Usually, rockets such as this one, need
fuel and oxidizer in order to power-rocket. Once the rocket has taken off,
the many discoveries take place.
Some studies and travels such as the aforementioned show that life
is not yet possible on Mars. In order for life on Mars .....
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Saturn
.... heat flux, the detailed gravity field, and the observed
upper-atmosphere hydrogen-helium ratio satisfy a model of the interior
where the ratio of hydrogen to helium decreases with depth. The gas
density gradually increases downward and the gas transforms into a liquid.
Further down the pressures increase to a critical level, and there the
hydrogen becomes metallic. A small core of silicate material probably
exists at the center.
The Saturnian atmosphere is characterized by counterflowing
easterly and westerly jet streams that, at the equator, reach a speed of
480 m/sec relative to the clouds at 40 degrees latitude. The zonal jets .....
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What Is Electricity
.... tend to take our electric lights, radios, mixers, etc. for
granted. Hundreds of years ago people did not have any of these things,
which is just as well because there was no place to plug them in. Then
along came the first Electrical Pioneer, Benjamin Franklin, who flew a kite
in a lightning storm and received a serious electrical shock. This proved
that lightning was powered by the same force as carpets, but it also
damaged Franklin's brain so severely that he started speaking only in
incomprehensible maxims, such as, "A penny saved is a penny earned."
Eventually he had to be given a job running the post office. After Fran .....
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The Wolf
.... the
other female. The pack may hunt and go as far as 130 to 13,000 sq. km.(50
to5,000 sq. miles)—and will defend all that land from intruders. The wolf
would have soft fur over it body to cover it like a jacket to keep it warm
during the winter. The wolf’s eyes are very keen. It can see and hear
very well when hunting for the prey. When you hear a wolf howl it is not
to scare you. It can be used for many different reasons such as to show
it is happy or to communicate with other wolves.
Habitat:
Wolves can live in a variety of habitats like the arctic tundra to
forest and prairie. But they never live in the deserts or really .....
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Oil And Protecting The Environment
.... waters declined by two-thirds compared to
the year before, representing the lowest amount recorded since the Coast
Guard began publishing data in 1973. And more than three-fourths of those
spills were under 10 gallons -- less than a car's fuel tank holds.
Even as the industry strives to reduce the number and size of oil spills
still further, we've also learned a lot over the past decade about the
best way to respond when, despite all of our precautions, a spill does
occur.
Since the passage of the Oil Pollution Act of 1990, the petroleum industry
has invested nearly $17 billion in oil spill prevention and response. When
a spi .....
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Plan And Purpose (Creation) Or Time And Chance (Evolution)?
.... doctrines, and
those that believe in evolution (evolutionists) posses an incompressible
view of their beliefs. Creationists firmly believe that their tentative
assumptions and ideology on how the universe was formed and how life began
is legitimate, exact, and accurate in all aspects. Evolutionists, however,
also believe that their philosophy and conception on how the earth was
formed and how life began and supposedly continues to change, diversify,
and evolve into other life forms is absolutely sound, rectified, and
amended in all areas. Creationists are bias toward any other theory on how
the universe and earth were created b .....
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The Big Bang And Steady State Models
.... perfect cosmological
principle. This principle says that the universe is the same everywhere on
the large scale, at all times.2 It maintains the same average density of
matter forever.
There are observational evidences found that can prove the Big Bang
model is more reasonable than the Steady State model. First, the redshifts
of distant galaxies. Redshift is a Doppler effect which states that if a
galaxy is moving away, the spectral line of that galaxy observed will have
a shift to the red end. The faster the galaxy moves, the more shift it has.
If the galaxy is moving closer, the spectral line will show a blue shift.
If .....
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Freezing Point
.... in this supercooled state for some time. This phenomenon is
explained by molecular theory, which conceives the molecules of a solid as
being well ordered and the molecules of a liquid as being disordered. To
solidify, a liquid must have a nucleus (a point of molecular orderliness)
around which the disordered molecules can crystallize. The formation of a
nucleus is a matter of chance, but once a nucleus forms, the supercooled
liquid will solidify rapidly. The freezing point of a solution is lower
than the freezing point of the pure solvent before introduction of the
solute (substance dissolved).
The amount that the freezing poin .....
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