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Free research papers and essays on topics related to: seawater

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  • Ben Franklin - 1,759 words
    Ben Franklin Benjamin Franklin-Scientist and Inventor Benjamin Franklin has influenced American technology, and indirectly, lifestyles by using his proficiencies and intelligence to conduct numerous experiments, arrive at theories, and produce several inventions. Franklin's scientific and analytical mind enabled him to generate many long lasting achievements which contributed to the development and refinement of modern technology. Few national heroes, including George Washington and Thomas Jefferson, played a more significant role in shaping the American way of life than Franklin. According to Fowler, He personified the ideal of the self-made man, and his rise from obscurity to eminence exem ...
    Related: benjamin franklin, franklin, franklin stove, royal society, eighteenth century
  • Biodiversity - 1,177 words
    Biodiversity Diversity Essay American biologist R. H. Whittaker in 1959 described a classification system of five primary kingdoms: plants, animals, fungi, protists, and monera. Kingdom animalia cover all taxonomic kingdom all living or extinct animals, an example of an animal is a human. Humans thrive off of one thing or another in each of the five kingdoms. The monera kingdom is the lowest division of rhizopods. Bacteria belong to this kingdom. There are many useful and harmful bacteria in the human body including those that are similar to amoebas. They dont have a nucleus. Plantae consist of all living or extinct plants (Plantae, kingdom Plantae, plant kingdom) the taxonomic kingdom that ...
    Related: biodiversity, humans evolved, animal kingdom, north america, specialized
  • Bouyancy And Displacement - 709 words
    Bouyancy And Displacement Buoyancy and Displacement Ships do not sink because of displacement; the ship moves more water than the ship actually weighs. Archimedes Principle: Any object wholly or partly immersed in a fluid is buoyed up by a force equal to the weight of the fluid displaced by the object. Density is mass of a unit volume of a material substance, expressed as kilograms per cubic meter in MKS or SI units. Density offers a convenient means of obtaining the mass of a body from its volume or vice versa; the mass is equal to the volume multiplied by the density, while the volume is equal to the mass divided by the density. The weight of a body, which is usually of more practical inte ...
    Related: displacement, vice versa, more practical, salt, kilograms
  • Cetaceans - 1,117 words
    Cetaceans Whales, dolphins and porpoises make up the classification order Cetacea, which contains two suborders, Mysticeti and Odontoceti. The baleen whales are members of the Mysticeti suborder, while the toothed whales, dolphins and porpoises make up the suborder Odontoceti. Altogether, the two suborders contain eighty-one known species, separated into thirteen different families. In each family are a number of species, each classified further into 'sub-families', or genera, of which there are 40. What Are Cetaceans? There are many misconceptions about cetaceans (whales, dolphins and porpoises), the most common of which is the idea that cetaceans are fish. They're not - they are mammals, l ...
    Related: carbon dioxide, marine life, blue whale, angle, tiny
  • Chemical Compounds Bromine - 290 words
    Chemical Compounds Bromine The element Bromine, is a red liquid which is explosive at room temperature and has a red brown vapour. It has an atomic number of 35 and an atomic mass of 79.909. The melting point of Bromine is -7 deg.C and the boiling point is 58 degC with a relative density of 3.1. Bromine is a volatile dense mobile, that is a reddish brown liquid, which quickly gives a brown toxic valour with a disagreeable irritating odour. It combines directly with most elements although heat or a reactant is often neccessary to start some reactions. Hydrobomic Acid and Hypobromous Acid is a mixture that is formed when Bromine reacts with water. Oxygen is liberated by Bromine when the result ...
    Related: bromine, melting point, boiling point, atomic number, manufacture
  • Chemistry Research - 2,121 words
    Chemistry Research CHAPTER 32 The tallest tree is the Redwood (Sequoia sempervirens) approx 110 m The tallest Angiosperm is the Australian Eucalyptus regnans Water Uptake and transport (Fig. 32.1) = water is essential because: transport solute, cool the body, photosynthesis and Turgor pressure Osmosis- movement of H2) through a semi-impermeable membrane Osmotic potential ( o)-depend on dissolve solute: Hi concentration means more negative o. Isoosmotic-two solution with same o; Hypoosmotic- solution that has a less negative o(more +) Turgor Pressure -hydraulic pressure result from water up take, cell turgid; analog to air pressure in a tire Water Potential ( )-Overall tendency of a solution ...
    Related: chemistry, respiratory system, nervous system, endocrine system, poison
  • Corals And Adaptations - 680 words
    Corals and Adaptations Coral reefs are among the most diverse and productive communities on Earth. They are found in the warm, clear, shallow waters of tropical oceans worldwide. Reefs have functions ranging from providing food and shelter to fish and invertebrates, to protecting the shore from erosion. Although many corals resemble plants, they are actually members of the animal phylum Cnidaria. Most corals are colonial, which means that each coral is made up of many individual polyps connected by living tissue (the coenosarc). Each polyp has a cup-like shape with a ring of tentacles around a central opening (pharynx) that functions as both mouth and anus. The tentacles are tipped with stin ...
    Related: coral reefs, symbiotic relationship, different types, important role, shallow
  • Corrosion And Rusting - 1,057 words
    ... Fe2+ (aq) + 2OH- Fe(OH)2 (s) The precipitate is rapidly oxidized by dissolved oxygen to form iron (III) hydroxide. 4Fe(OH)2 (s) + O2 (aq) + 2H2O (l) 4Fe(OH)3 (s) On standing, this changes to rust, a reddish brown solid. Rust is in fact hydrated iron (III) oxide with variable composition (Fe2O3 nH2O). Factors that speed up rusting 1) Presence of electrolytes Acid solutions make rusting go faster. In industrial areas where air is seriously polluted, there are high concentrations of carbon dioxide, sulfur dioxide and nitrogen dioxide. These gases dissolve in rain water to give "acid rain", which makes iron objects rust faster. Sodium chloride also makes iron rust more quickly. For exampl ...
    Related: corrosion, dissolved oxygen, carbon dioxide, acid rain, terminal
  • Depletion Of The Ozone Layer - 1,052 words
    Depletion of the Ozone Layer Depletion of the Ozone Layer CHEM 151 Research Paper July 11, 1996 The ozone layer diminishes more each year. As the area of polar ozone depletion (commonly called the ozone hole) gets larger, additional ultraviolet rays are allowed to pass through. These rays cause cancer, cataracts, and lowered immunity to diseases.1 What causes the depletion of the ozone layer? In 1970, Crutzen first showed that nitrogen oxides produced by decaying nitrous oxide from soil-borne microbes react catalytically with ozone hastening its depletion. His findings started research on "global biogeochemical cycles" as well as the effects of supersonic transport aircraft that release nitr ...
    Related: depletion, layer, ozone, ozone depletion, ozone hole, ozone layer, stratospheric ozone
  • Dolphins Talking - 1,200 words
    Dolphin's Talking Bottlenose dolphins are among the most vocal of the nonhuman animals and exhibit remarkable development of the sound production and auditory mechanisms. This can be seen in audition, which is shown in the animal`s highly refined echolocation ability, and in tightly organized schools in which they live that are made up by sound communication. In testing the communication skills of dolphins, extensive studies have been done on vocal mimicry, in which the animal imitates computer-generated sounds in order to test motor control in terms of cognitive ability. Language comprehension on the other hand has been tested through labeling of objects, which has proven to be successful r ...
    Related: dolphins, communication skills, communication system, human communication, artificial
  • Dr Brenda J Little - 496 words
    Dr. Brenda J. Little Dr. Brenda J. Little of the Naval Research Laboratory Stennis Space Center is the recipient of the 1995 Women in Science and Engineering Award. This award recognizes specific or special scientific or technical contributions by a woman scientist in the Federal service and specific contributions made by a woman scientist toward encouraging young girls and women to pursue science or engineering careers, or enhance employment, promotional or development opportunities for women scientists in their field. Dr. Little, head of the Microbiologically Influenced Corrosion Section at NRL, has worked on MIC projects for the Department of Energy and the U. S. Army, and has served as a ...
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  • Freshwater Regions - 1,507 words
    Freshwater Regions Freshwater is defined as having a low salt concentrationusually less than 1%. Plants and animals in freshwater regions are adjusted to the low salt content and would not be able to survive in areas of high salt concentration (i.e, ocean). There are different types of freshwater regions: ponds and lakes, streams and rivers, and wetlands. The following sections describe the characteristics of these three freshwater zones. Ponds and Lakes These regions range in size from just a few square meters to thousands of square kilometers. Scattered throughout the earth, several are remnants from the Pleistocene glaciation. Many ponds are seasonal, lasting just a couple of months (such ...
    Related: freshwater, plant species, barrier reef, sea anemones, crucial
  • Fusion - 1,323 words
    ... eating, and the onset of nuclear fusion. The situation in star formation differs in one respect: after gravitational collapse ceases and star begins to expand again due to heat from exoergic nuclear fusion reactions, the expansion is arrested by the gravity force associated with the enormous mass of the star. In a star a state of equilibrium in both size and temperature is achieved. In ICF, by contrast, complete disassembly of fuel occurs. The fusion reaction least difficult to achieve combines a deuteron (the nucleus of the deuterium atom) with a triton (the nucleus of a tritium atom). Both nuclei are isotopes of the hydrogen nucleus and contain a single unit of positive electric charge ...
    Related: fusion, nuclear fusion, high power, greenhouse effect, shock
  • Global Warming - 1,345 words
    Global Warming The humanity is currently facing one its biggest problem ever. Indeed, the Earth is warming and consequences might be devastating for the future generations. There is a general agreement among scientists that Earth's climate is being affected by industrial society. Industry affects global climate by releasing greenhouse gases (GHGs). The most significant GHG is carbon dioxide (CO2). While some GHGs occur naturally, others are released in the atmosphere by certain human activities such as the burning of fossil fuels, deforestation activities and some agricultural practices. These activities affect climate by increasing the so-called 'greenhouse effect'. GHGs concentrate in the ...
    Related: global climate, global warming, warming, more important, new zealand
  • History Of Anthropology - 565 words
    History Of Anthropology I have learned many new theories I have never known before, there are a great many objectives and thoughts that I had never even knew existed before. Learning about the history of anthropology has opened my mind of thinking in all these different schools of thoughts. One thing that has shocked me is that I have learned the early evolutionists had never done fieldwork, but would make assumptions. The person that has shocked me the most is the theories Herbert Spencer. He saw the different classes of the British Empire and he wanted to know how to classify them, which is normal. He came up with a cellular difference, the rich have intelligent cells and the poor have sex ...
    Related: anthropology, history, morgan freeman, leonardo da vinci, teenage
  • Introduction - 1,018 words
    INTRODUCTION Ecology is the study of living things interacting with its environment, other species, and its own kind. Its a study of all external condition and factors, both biotic ( living ) and a-biotic ( nonliving ), that affect an organism. To carry out this study, scientists observe different ecosystems: forests, deserts, grasslands, oceans, or any kind of interaction between organisms and their surroundings, or with each other, which are called ecosystem effects. There are four components within an ecosystem. The a-biotic component, which determines the types of organisms found there, the producers, the consumers, and the decomposers. These components cause continual change within the ...
    Related: ocean currents, natural resources, global warming, warming, ecosystems
  • Lithosphere - 1,200 words
    Lithosphere Notes on the lithosphere- (rock sphere) Upper most part is crust of earth. Compiled of rocks of outer crust. Outermost shell. Upper part- rocks we see at and near the earths surface. Crust is 5 to 10 km thick under most oceans and 24 to 60 km thick under the continents. The lithosphere under the crust is solid, dense material. (more dense than surface materials). Lithosphere 100-200 km. Notes on the aesthenosphere- zone beneath the lithosphere. Thick like tar. Weak because of high teperatures at that depth. Density- 2.7-3.4 to about 12. Notes on the hydrosphere- (Water-bearing) Too small due to the irregularity of upward projection. Density-1.1 Notes on the Atmosphere- only 10 km ...
    Related: lithosphere, greenhouse effect, kinetic energy, ocean currents, temperature
  • Maintaining Marine Reef Aquarium - 1,190 words
    Maintaining Marine Reef Aquarium Important Aspects in Maintaining a Marine Reef Aquarium There is something fascinating and relaxing in having an aquarium in a home. Like a fireplace's warm glow and bright colors, the colors that are emitted from an aquarium can be just as warm and even more colorful. From the slow and graceful movement of the fish to the frantic feeding frenzy, an aquarium is different each time it is viewed. Although a freshwater tank can be full or color, it does not come close to the fiery colors that are present in a marine aquarium. Unfortunately, all the color and life that a marine aquarium holds is much more fragile and not as easy to keep as a freshwater tank. Ther ...
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  • Marine Biology - 445 words
    Marine Biology Aquarium Assignment A major source of coastal pollutants, human sewage fouls bays and beaches with both toxic and nontoxic pollutants. Although billions of dollars have been invested in sewage treatment plants to treat wastewater, new and growing coastal communities have increased the amount of discharge into oceans and estuaries. The United States Office of Technology Assessment has identified thirteen hundred major industries and six hundred municipal wastewater treatment plants that discharge into coastal waters of the United States. Many toxic substances enter the sea through the sewer systems, but others originate as industrial discharges. For many toxic substances, we do ...
    Related: biology, marine, marine biology, marine life, united states office
  • Mohandus Karamchand Gandhi - 1,140 words
    Mohandus Karamchand Gandhi Mohandus Karamchand Gandhi was a major figure in Indian history. He was best known for his policy of passive resistance and civil disobedience against unjust laws set by the British government. He inspired other nonviolent movements notably the U.S. civil right movement of the 1950s and 1960s lead by Dr. Martin Luther King, Jr. (Encarta 98). Gandhi was highly influential, some say responsible, for Indias gain of independence and the abolishment of untouchability, the lowest rank under the caste system. Gandhi was born to a middle-class Indian family in 1869 and married at the age of thirteen to Kasturbai Makanji. He began to study law at the University of London in ...
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