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Science & Nature Essays and Term Papers
UFO'sOutline
Thesis: We once believed that Earth is the only planet in the Universe
that supports life. Today there is overwhelming evidence that
not only suggests, but supports the very real possibility that we
may share the Universe with other intelligent beings.
I. Things in ...
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Bacteria And Their EffectsBacteria can help and harm humans in the world today.The
agricultural industry depends on the existence of bacteria that can
transform the nitrogen gas from the atmosphere into ammonia in the soil
that plants can use in a process called nitrogen fixation.Bacteria are good
for recycling because ...
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Effects Of AsperguillusAspergillus spp. is a type of fungus that forms spores. It is normally
found in soil, water, and decaying vegetation. In the hospital environment, the
spores settle in some part of the ventilation system. Spores are also stirred
up from construction and renovation. Additional sources of the ...
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Why We Have SeasonsSeasons are produced by the inclination of the earth's axis of
rotation, with the yearly revolution around the sun. During the earth's
yearly revolution around the sun, the northern and southern hemispheres
alternate their incline towards and away from the sun. This unequal
heating of the ...
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Caffeine 2As can be seen above, caffeine consists of two carbon/nitrogen rings with oxygen and methyl groups as substituents. The fused rings are similar to those in adenine only the substituents differ. Caffeine is found in coffee, tea, and many soft drinks. There is also some amount of caffeine in ...
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Diffraction And The Debye-Scherrer CameraMany scientific applications have made great use of the wave nature of light. Until the first half of the century the nature of light remained completely a mystery. Some thought light to be a particle while others believed it to be a wave. Scientists now know that wave exhibits properties of ...
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Asthma 2"Asthma is a respiratory disease in which spasm and constriction of the bronchial passages and swelling of their mucous lining cause obstruction of breathing." (Anastasiow 1997)
Etiology: " This disease is often due to allergies, such as dust, smoke, cold air, exercise, animal fur or feathers, ...
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The Roswell IncidentAlmost everyday there are programs on television which involve or
relate to UFO's (Unidentified Flying Object's) or aliens from other planets.
Programs including X-Files, Unsolved mysteries, and Sightings, often deal
with aliens and UFO's. Many people believe in other life-forms and some
will do ...
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IntranetInternet has been the most popular and widely used tool for fetching information on the net. However, another information system is surging in popularity, especially among business organizations and large corporations. The information system is called the . What is an ? What is not an ? And what ...
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Urban Heat IslandsFor more than 100 years, it has been known that two adjacent cities are
generally warmer than the surrounding areas. This region of city warmth, known
as an urban heat island, can influence the concentration of air pollution. The
urban heat island is formed when industrial and urban areas are ...
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Atomic Theoryis the study of atoms. Atoms are the smallest forms
of matter that can still be considered/recognized as elements. Atoms are
what make up everything on our earth, from molecules to monkeys. Atoms are
joined together to make molecules, which are in turn joined together to
make everything else. To ...
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Digestive SystemThe human body uses various kinds of food for energy and growth. To be used, however, food must be changed into a form that can be carried through the bloodstream. The body's process of extracting useful nutrients from food is called digestion.
The of humans and other higher animals is the ...
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Gold 2Gold, nothing can compare to this precious metal. A symbol of wealth and prosperity, it has been a value for explorers and adventurers and a lure for conquerors. Today it is vital to commerce and finance; popular in ornamentation, and increasing importance in technology.
The nature of gold is ...
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Integrated Pest Management(IPM) is a recently developed technology for pest
control that is aimed at achieving the desired control while reducing the use of
pesticides. To accomplish this, various combinations of chemical, biological,
and physical controls are employed. In the past, pesticides were all too often
applied ...
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Genetic Engineering And DNA Technology In Agricultural ProductivityDue to more and more technological advances in genetic engineering, gene splicing, DNA fingerprinting, and mapping, breakthroughs in the agricultural productivity are being made. This new DNA technology allows scientists to do things such as increase food production, reduce the plant’s ...
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Killer Whale, The Mighty DolphKiller Whale, a name to strike terror in the hearts of sea ferers in all the oceans of the world. The Romans called it Orca, meaning "The demon from Hell." Originally, american fisherman referred to them as "Whale Killer" because many fisherman reported seeing pods of them attacking and killing ...
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Endangered Species Of South America
Endangered species are plant and animal species that are in danger of extinction, the dying off of all individuals of a species. Over 19,000 plant species and 5000 animal species around the globe are classified as endangered, and many thousands more become extinct each year before ...
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Genetic VariationsCharles Darwin stated that over time life could change so much so that new species are formed from a single species. But Darwin did not know where these mutations occurred. His theory could explain how humans and chimps are so alike yet different. Are we all just accidents of creation caused by ...
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Kevlar, the trademark name by DuPont (Sci. & Inv. Enc., 1352), was invented in 1965 by Stephanie Kwolek. A woven millibar (shown on project board) has 18,000 pounds of strength, which is the strongest material in the world! can be five through fifteen times stronger than steel, depending on the form ...
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Biome BroadcastLANCASTER / PENNSYLVANIA
This morning Darian, Danny, Laura, and I were bored so we decided that we
would all go on a hike at Blue Ridge Mountain. All of us went home, got our
hiking equipment, and packed a lunch. We then met at my house. I drove all of
us up to Blue Ridge Mountain. We got ...
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CloningThe emergence of Dolly, the cloned sheep, caused a great sensation and has fuelled intense debate. The debate is over whether or not the technique should be used and whether the technique should even be researched into and developed, or whether an actual ban on this type of research should be ...
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Chemistry InvestigationInvestigate A Factor Which Affects the Rate Of Fermentation Of Yeast
This experiment is investigating one of the factors which affects the rate of fermentation of yeast.
Several factors affect the rate of reaction:
Increasing the concentration. (See the lock and key theory.) If the ...
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Digital TelevisionOn November 1, 1998 computer companies, television makers, broadcasters, and program suppliers have made a transition from analog to . When the FCC passed a law forcing the networks to change from an analog broadcast to a digital broadcast, all the above mentioned industries have been scrambling ...
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We Are Not AloneOutline
Thesis: We once believed that Earth is the only planet in the Universe
that supports life. Today there is overwhelming evidence that
not only suggests, but supports the very real possibility that we
may share the Universe with other intelligent beings.
I. ...
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Drinking Water ContaminationDue to the Safe Drinking Water Act (SDWA), America's drinking water is safer than it has been in decades, and of better quality than that of many other countries. Accordingly, many Americans believe that while people elsewhere may have reason to be concerned about getting sick from contaminated ...
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