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What is the function of a stirring rod?

Stirring rods are used to decant or pour liquids slowly. Slow pouring is essential when working with potentially hazardous chemicals that can react too quickly. Using the stir rod to decant liquid makes it easier to keep a precipitate in the bottom of the beaker, because the liquid pours more slowly, reducing the chances of it agitating the solid.\nTo induce crystallization in a recrystallization experiment, the glass stirring rod is scraped against the inside of the flask containing the solution.

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What is a person who studies sharks called?

In order to become a shark biologist, it is necessary to have a college degree in Marine Biology. A marine biology student can then enter an internship and specialize in shark studies. The student also needs to learn relevant skills, such as diving, wilderness first aid and small boat handling in order to adapt to the challenging and competitive field of shark biology.

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Can jogging cause blood in the urine?

There are two types of hematuria: gross and microscopic, says the National Kidney and Urologic Diseases Information Clearinghouse. Gross hematuria results in visible blood contamination of the urine, evidenced by the urine having a red, pink or brown color. Microscopic hematuria describes the presence of blood in the urine in such small quantities that it can only be seen under a microscope.\nJoggers who experience hematuria most often exhibit gross hematuria, where visible blood contamination can be seen during urination after strenuous exercise, states the Cleveland Clinic. Generally, gross ..

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How do microscopes help scientists?

Microscopes continually advance in technology, which in turn improves scientific studies. Microscopes evolved from basic light microscopes to complex units that help scientists see images in three dimensions and in greater detail. Continually improving technologies help scientists convey complex information to educators, medical professionals and researchers.In addition to viewing objects, microscopes help scientists understand intricate life processes. Some microscopes specialize in certain areas, such as highlighting certain features of molecules and slides or showing images with concentrate..

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How many feet is 58 inches?

An inch is a small unit of measurement used in the United States and a few other countries. The plural form of inch is inches, and it can be abbreviated as "in." One inch equals 2.54 centimeters, which is a metric system measurement.\nA foot is also used in the United States. The plural form is listed as feet, and it is abbreviated as "ft." The name is derived from it historically being based on the length of a foot.

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Can you describe Saturn?

Named after the Roman god of agriculture, Saturn is a gas giant without a solid surface. Its interior structure consists of rock, ice, water and other materials surrounded by liquid metallic hydrogen and an atmosphere of hydrogen and helium. Saturn's winds travel at 1,600 feet per second. The fast winds combined with the planet's heat form the visible yellow and gold colors in its atmosphere. Saturn is the furthest planet that can be observed unaided by the human eye.\nA series of seven separate rings surrounds Saturn. These rings, comprised mainly of water and ice, include vertical ..

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What causes a vortex?

Vortexes are formed when two substances move rapidly to replace each other along a vertical track. In the case of liquid vortexes, the substances are usually the liquid in question and the surrounding air. In atmospheric vortexes, the substances are generally hot air, which has a tendency to rise, and cold air, which has the tendency to sink.

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Where do floods occur in the world?

It is possible for flooding to occur without rainfall. Areas that have a lot of ice and snow can experience flooding when the ice and snow melts. The water from the melting then goes into rivers that cannot contain it, causing the area to flood.\nCoastal areas are prone to flooding as well ? particularly when a hurricane comes through. Flooding can occur from the ocean going inland or from the large amounts of rainfall associated with hurricanes.

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What are the functions of smooth muscle cells?

Smooth muscle cells are responsible for helping food pass through the digestive system and for pushing food up into the esophagus when vomiting occurs. In the urinary system, smooth muscle cells contract to push urine into the urethra and out of the body. When a woman gives birth, the smooth muscle cells found in the uterus contract to push the baby out of the birth canal. Smooth muscle cells also affect the diameter of the blood vessels. When the smooth muscle inside a blood vessel contracts, the diameter of the blood vessel decreases. If the smooth muscle expands, the diameter of the blood v..

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What are some clean lakes in the US?

Crater Lake is possibly the cleanest lake in the world because it is fed solely by snow and rain rather than any rivers or oceans. Because of its clarity, the color of the water is a vibrant deep blue. Flathead Lake also offers stunning clarity, where the bottom surface of the lake is clearly visible throughout most of its 191.5 square miles. Flathead is colloquially referred to as having "OCD levels" of cleanliness.\nLake Travis was ranked as the sixth-cleanest lake in the United States by the Austin City Guide. The lake is a very popular location for scuba divers due to both its clarity and ..

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