.... with a temperature as low as -177 degrees Fahrenheit can trigger a vigorous reaction. Because Cesium reacts so violently with organic compounds, it is considered the most reactive of Alkali metals. There are four principle compounds that make up Cesium’s structure: Cesium Chloride, Cesium Fluoride, Cesium Carbonate, and Cesium Sulfate. The most important compound is Chloride, which is used as a constituent of getter mixtures of vacuum tubes. Cesium is identified qualitatively by it’s blue flame. When determining quantitative amount of Cesium, the fact that Cesium forms an extremely inso .....

.... are affected by, but also through transfusion of the blood and its components. And sadly, whenever a mother is infected, the unborn child will almost positively receive the virus before, during, or after the pregnancy. The viruses which cause AIDS, otherwise known as Human Immunodeficiecy Viruses(HIV) were first discovered in 1983 cooperatively by Dr. Robert Gallo of the National Cancer Institute and Dr. Luc Montagnier of the Pasteur Institute in France. Aids is caused mainly by the HIV-1 virus, while the HIV-2 virus is less pronounced among those infected. Scientists are puzzled as .....

.... aerosols suspended in the atmosphere. These arise from the burning of coal and from industrial processes. Atmospheric particles can scatter and absorb sunlight which reduces visibility. Particles also reduce visibility by attenuating the light from objects and illuminating the air causing the contrast between the objects and their backgrounds to reduce. Not only does it effect visibility, but it hastens the erosion of building materials and the corrosion of metals, interferes with the human respiratory system, and brings toxic materials into the body. The small particles cause chronic bron .....

.... are dragged into the Earth's interior or are distorted into folded masses and molded into new material of the continents. Deep trench in the sea bed indicating the presence of a destructive margin (produced by the movements of plate tectonics). The dragging downwards of one plate of the lithosphere beneath another means that the ocean floor is pulled down. Ocean trenches are found around the edge of the Pacific Ocean and the northeastern Indian Ocean; minor ones occur in the Caribbean and near the Falkland Islands. Ocean trenches represent the deepest parts of the ocean floor, the dee .....

.... plates. The gap is closed as the plates move more into each other, locking the molten material in. This, by the way, happens at all of the convergent boundaries. After much time, pressure builds up as the molten material churns in its chamber. It gets hotter, and as we know from the laws of physics, heat rises due to its kinetic energy. So, as the pressure get to be too much, the molten material goes up. As you may already know, molten material mostly does not just come out of a big hole in the ground. It comes out of mountains. When the molten material is pushing up through to the surf .....

.... should take further precautions in preventing these diseases as well as preventing the spread of them on a global scale. Many people in today's society must take a more serious look at the implications that an infectious disease can have on one's life. What are STDS? Sexually transmitted diseases (STDS), also known as venereal diseases, is a broad term that refers to more than fifty diseases and syndromes, which may be transmitted through the exchange of body fluids such as semen, vaginal fluid, and blood. An STD is a particular destructive process in an organism; which is likely to sprea .....

.... In this second stage changes to the cell become visible. The chromosomes condense, coiling up to about 5% of their original length, now clearly visible when a stain is added. The centrioles move to the opposite poles of the cell and small microtubules around the centrioles become visible (called "Asters"). The nuclear membranes and nucleolus disintegrate after passing their nucleic acids to certain pairs of chromatids. Now a spindle forms, this is also made out of microtubules. [A labelled diagram of the end of the Prophase stage of a cell here would be great.] Metaphase ---- .....

.... round balls or flakes. The cirrocumulus sometimes form a pattern of a buttermilk sky. The cirrostratus sometimes form tangled webs or thin whitish sheets. A large ring or halo is sometimes seen around the sun or moon when the cirrostratus covers the sky. The middle layer of range in altitude from 6,500 to 23,000 feet. The altocumulus, altostratus, and nimbostratus are found in the middle division. The altocumulus are more rounded and puffier than the cirrocumulus . When people stare at the altocumulus , they usually see a shape of an animal, usually an elephant. Altostratus cove .....

.... was a lack of land that could be irrigated easily. By the turn of the century, most present day cities and towns were already established. Trails, roads, and railroads linked several areas with neighboring regions. Although the drainage system was still not integrated. In the mid 1900’s many dams had been built to harness and use the water. A new phase of development occurred at the end of the second World War. There was a large emphasis on recreation, tourism, and environmental preservation. The terrain of the is very unique. It consists of Wet Upper Slopes, Irregular Transition Plai .....

.... He also explained that the particles that went straight through the foil did so because the atom is mostly empty space and that the distance between electrons and the nucleus is vast compared to the size of the nucleus itself. In 1919, he discovered the "artificial disintegration" of nitrogen. His experiments show that under alpha radiation, nitrogen is decomposed and hydrogen is formed. Rutherford also devised an electrical method for counting the number of alpha particles emitted from radioactive substances. Using this method, he measured the number of alpha particles expelled per .....