... at different temperatures. Since we cannot see air, we will attempt to determine if air exerts a force? HYPOTHESIS: My hypothesis for: 1) the experiment with the pop can is that the can will crush because of a drastic change in temperature. 2) the experiment with the milk jug and the hot water is that the milk jug will remain the same. 3) the experiment with the egg and the bottle is that the egg will not be sucked in the bottle. PROCEDURE: For the first experiment the procedure is: 1) Heat an ordinary pop can on a hot plate. 2) After about fifteen minutes take the can off the hot plate and pu ...

... the electricity for our homes and to run our electric appliances. We also burn natural gas, coal, and oil to heat our homes. The smoke and fumes from burning fossil fuels rise into the atmosphere and combine with the moisture in the air to form . The main chemicals in air pollution that creates are sulfur dioxide and nitrogen oxides. usually forms high in the clouds where sulfur dioxide and nitrogen oxides react with water, oxygen, and oxidants. This forms a mild solution of sulfuric acid and nitric acid. Sunlight increases the rate of most of these reactions. Rainwater, snow, fog, and other forms of pr ...

... and mentally destroy the body. Many people are fascinated about steroids because of their ability to build up the body. Whether taken by injection or the pill it increases strength and endurance. Steroids also help in the healing process of muscular tissue by first injuring them, then the muscles heal quicker adding more fiber increasing their bulk. Many athletes turn to steroids more often because they're cheaper then marijuana or cocaine. A ten week cycle of testosterone cypinate and methandrostone costs only about one hundred dollars. Steroids are also very hard to trace because ...

... membrane. The outer membrane is smooth and limits the organelle. It is highly permeable to small solutes such as molecules and ions, but it blocks off passages of proteins and other macromolecules. The inner membrane of the mitochondria is folded into shelf like structures called cristae. The cristae does not even allow the passage of small ions and so it maintains a closed space within the cell. The many infoldings of the cristae are responsible for providing the mitochondrion with a large surface area which enhances the productivity of respiration. The inner membrane and outer membrane effectively divide the ...

... arabinose from coniferous trees; ribose, a component of ribonucleic acids and several vitamins; and deoxyribose, a component of deoxyribonucleic acid. Among the most important aldohexoses are glucose, mannose, and galactose; fructose is a ketohexose. Several derivatives of are important. Ascorbic acid (vitamin C) is derived from glucose. Important sugar alcohols (alditols), formed by the reduction of (i.e., addition of hydrogen to) a monosaccharide, include sorbitol (glucitol) from glucose and mannitol from mannose; both are used as sweetening agents. Glycosides derived from are widespread in nature, espe ...

... William Blanchard, who later went on to become a four-star general and Vice Chief of Staff of the United States Air Force. That the weather balloon story was a cover-up has been confirmed by individuals directly involved, including the late General Thomas DuBose, who took the telephone call from Washington, D.C. ordering the cover-up. Numerous other credible military and civilian witnesses have testified that the original press release was correct and that the Roswell wreckage was of extraterrestrial origin. One such individual was Major Jesse Marcel, the Intelligence Officer of the 509th Bomb Group and one of ...

... and pesticides. It is also used for bleaching paper pulp and other organic materials, preparing bromine, (a poisonous element that at room temperature is a dark, reddish-brown), tetraethyl lead, and killing germs in water, particularly in swimming pools and hot tubs. Like every member of the halogen group, chlorine has a tendency to gain one electron and become a chloride ion. Chlorine strongly reacts with metals to form mostly water-soluble chlorides. Chlorine also strongly reacts with nonmetals such as sulfur, phosphorus, and other halogens. If you were to mix hydrogen and chlorine gases and keep them in a ...

... in pressure on the median nerve. c)Work activities and hobbies, such as typing, needle working, knitting, cashier, and any hand tools or instruments that puts pressure on the base of the palm. Symptoms Symptoms that may be involved with are as follows: pain, tingling, and numbness in the thumb, index, middle, and ring fingers tingling in the entire hand pain that shoots from the hand up the arm as far as the shoulder a swollen feeling in your fingers-even though they may not be visibly swollen You may notice that: your symptoms are worse at night your hands feel weak in the morning you drop objects ...

... in many ways resembled modern mammals by the period’s end. The most profound geographic change during Paleogene time was a refrigeration of Earth’s polar regions, which resulted in a chilling of the deep sea and, later in the Cenozoic Era, in widespread glaciation. Paleogene mountain-building events in western North America foreshadowed Neogene uplifts of such ranges as the Sierra Nevada and the Rocky Mountains. During the Neogene, the modern world took shape. The global ecosystems acquired their present configuration and prominent topographic features assumed the forms we are familiar with today. No ...

... a system of microscopic organs which can detect changes in water pressure around the shall. Sharks do not possess gills flaps like a fish so a shark must continuously move in order to obtain enough oxygen to survey. The large teeth of a shark are evolutionarily derived from jagged skin scales. Which are apparent on shark’s ancestor’s Placodermi class. The digestion system of a shark contains a “spiral valve” intestinal system, which increases the surface area and lengthens the time food is digested in the unusually short intestine system of a shark. Sharks sexually reproduce. Unlike a sh ...