Biology Essays Examples For College & High School Students in PDF

10822 total results

An Essay on Electromagnetic Induction Theory (2357 words, 3 pages)

Electromagnetic InductionTheory The phenomenon called electromagnetic induction was first noticed and investigated by Michael Faraday, in 1831. Electromagnetic induction is the production of an electromotive force (emf) in a conductor as a result of a changing magnetic field about the conductor and is a very important concept. Faraday discovered that, ... Read More

A Report on the Construction of Direct Current Voltmeters and Ammeters (2030 words, 3 pages)

Construction of Direct Current Voltmeters and AmmetersTheoryWhenever working with electrical systems, the measurement of both current and voltage can be very important. Without accurate measurements of current and voltage, calculations of resistance and other pertinent values could not be completed. This need for measuring electric values in circuit lead to ... Read More

An Essay on the Theory of Evolution (2024 words, 3 pages)

The First Men Ancestors to be Proud of Evolution is described to be any change in the frequency of alleles within a gene pool from one generation to the next by Biology, a high school textbook. But what exactly does that mean? Evolution is the idea that things or animals ... Read More

The Life and Contributions of Alfred Bernhard Nobel (2066 words, 3 pages)

Alfred Bernhard Nobel (1833-1896)Alfred Bernhard Nobel was a Swedish chemist, inventor, philanthropist, and some say was the first mad scientist. httpwww.ideafinder.comhistoryinventorsnobel.htm Eventually, blowing up things was a part of his everyday life. Born on October 21, 1833 in Stockholm, Sweden, Alfred Nobel led a rough life. He was constantly sick, ... Read More

The Useful Properties of Aluminium (587 words, 1 pages)

Aluminum is the most abundant metal and the third most abundant element in the earth's crust, after oxygen and silicon. It accounts for about 8 of the earth s total mass (Tarbuck 103). Aluminum is a transition metal and is very chemically reactive too reactive to occur naturally as a ... Read More

A History of Chrysler Corporation in United States of America (1115 words, 2 pages)

WIRED HANDS - A Brief Look at Robotics NEWSCIENCETwo years ago, the Chrysler corporation completely gutted itsWindsor, Ontario, car assembly plant and within six weeks hadinstalled an entirely new factory inside the building. It was amarvel of engineering. When it came time to go to work, a wholenew work force ... Read More

An Analysis of Kevlar’s in Skateboarding (1736 words, 2 pages)

Skaters suffring from poor quality due to abrasionThrough out skateboarding history a sand paper material known as grip tape has been glued to skateboard decks. This material made for gripping onto boards also destroys sneaker soles. Grip tape causes friction between sneakers and itself, while making a grip and facilitating ... Read More

A Report on the Importance of Water to Life on Earth (916 words, 2 pages)

The Importance of Water to Life on Eartha look at the unique structure and behavior of the water molecule-----Water is the most important substance in our evolution and our daily lives. Without water,life as we know it would not have been possible. This essay will examine the water moleculein order ... Read More

An Overview of Water (1350 words, 2 pages)

Water Fresh water is one of our most important natural resources becauseit's needed for survival and there is no substitute for it. Unlike energy,which has many alternative forms there are no alternatives for water. Mostof our earth is covered by water, but only a tiny amount is available forfresh water. ... Read More

A Research on the Importance of Water to Life (950 words, 1 pages)

Water Important to LifeWater is the most important substance in our evolution and our daily lives. Without water, life as we know it would not have been possible. This essay will examine the water molecule in order to ascertain how it brought about Earth s thriving ecosystem and how important ... Read More

A Description of an Extraterrestrial Experience by an Astronomer (738 words, 1 pages)

ufo's are realAstronomer Alan Hale provides an interesting perspective on unidentified flying objects. He states that there are three basic examples or principles he is guided by. The first principle says that extraordinary claims require extraordinary evidence. For example, to that aliens came from outer space and flew around at ... Read More

An Essay on UFOs: Fact or Fiction (3586 words, 4 pages)

UFOs Fact or Fiction? For centuries man has wondered on his position in the universe. Is he alone? Is he the divine creature? Is he descended from an ape, or a godly being? Finding its major roots just recently after World War II, the idea of extraterrestrial life existing and ... Read More

A Description of How a Human Brain Works (1072 words, 2 pages)

Two Brains?Your brain has two sides. And each has a distinctly different way oflooking at the world. Do you realize that in order for you to read this article, the twosides of your brain must do completely different things? The more weintegrate those two sides, the more integrated we become ... Read More

A Report on Tsunamis (474 words, 1 pages)

TsunamisThere are Earthquakes, Volcanoes, Floods, Fires and Avalanches. Then there are Tsunamis, The often overlooked stress relief system of the earth. Tsunamis are huge waves often called Tidal Waves but they have nothing to do with the diurnal pattern of high and low tides. Tsunami is a Japanese word used ... Read More

An Essay on the Science of Contraceptives (1226 words, 2 pages)

Through A Narrow Chink An Ethical DilemmaIn 1951 Carl Djerassi, with the Mexican pharmaceutical company Syntex, developed the first oral contraceptive by synthesizing and altering the natural hormone Progesterone into a superpotent, highly effective oral progestational hormone called "norethindrone". Admittedly, the dynamics and importance of this find were astounding, since ... Read More

A Report on DNA: The Thread of Life (695 words, 1 pages)

Thread of Life DNAThe "thread of life", is deoxyribonucleic acid, otherwise known as DNA. It is the spiral shaped molecule found in the nucleus of cells. Scientists have known since 1952 that DNA is the basic substance of heredity. This was hypothesized, and later confirmed by James D. Watson and ... Read More

A Description of Acid Rain and its Disastrous Effects (1266 words, 2 pages)

THOUGHTS ON ACID RAIN Acid rain is a serious problem with disastrous effects. Each day this serious problem increases, many people believe that this issue is too small to deal with right now this issue should be met head on and solved before it is too late. In the following ... Read More

A Description of the Theories of the Origin of the Moon (1395 words, 2 pages)

Theories of The Origin of the MoonThe Moon is the only natural satellite of Earth. The distance from Earthis about384,400km with a diameter of 3476km and a mass of 7.351022kg. Throughhistory it has had many names Called Luna by the Romans, Selene andArtemisby the Greeks. And of course, has been ... Read More

An Analysis of the Greenhouse Effect Which Occurs When Gases Heat the Atmosphere by Acting as a Pane of Glass in a Car (1012 words, 2 pages)

The Greenhouse Effect The greenhouse effect occurs when gases such as methane, carbon dioxide,nitrogen oxide and CFCs trap heat in the atmosphere by acting as a pane ofglass in a car. The glassX lets the sun light in to make heat but when theheat tries to get out the gases ... Read More

A Research on the Effects of HIV Mutations on the Immune System (1935 words, 3 pages)

The Effects of HIV Mutations on the Immune System The topic of this paper is the human immunodeficiency virus, HIV, andwhether or not mutations undergone by the virus allow it to survive in theimmune system. The cost of treating all persons with AIDS in 1993 in theUnited States was 7.8 ... Read More

An Analysis of the Topic of the Scientific Management and the Role of Frederick W. Taylor (2599 words, 3 pages)

Taylorism"Scientific Management" and Frederick W. Taylor. At one point VincenzoSandrone submitted a post on the subject that the forum moderator deemedappropriate to the discussion, but to long to be posted to the list.What he did was post a notice to the list that the paper was availablefrom Mr. Sandrone via ... Read More

The Main Features of Representative Gases (1471 words, 2 pages)

Representative Gases Properties of GasesReview1. State the five assumptions of the Kinetic-Molecular Theory of gases. a) Gases consist of large numbers of tiny particles. These particles, usually molecules or atoms,typically occupy a volume about 1000 times larger than occupied by the same number of particles in theliquid or solid state. ... Read More

A Research on Solar Cells (1133 words, 2 pages)

Solar cells today are mostly made of silicon, one of the most common elements on Earth.The crystalline silicon solar cell was one of the first types to be developed and it is still the mostcommon type in use today. They do not pollute the atmosphere and they leave behind no ... Read More

An Essay on Solar Energy (1195 words, 2 pages)

Solar EnergySolar cells today are mostly made of silicon, one of the most common elements on Earth. The crystalline silicon solar cell was one of the first types to be developed and it is still the most common type in use today. They do not pollute the atmosphere and they ... Read More

An Overview of Silicon (1351 words, 2 pages)

Silicon Silicon is the raw material most often used in integrated circuit (IC)fabrication. It is the second most abundant substance on the earth. It isextracted from rocks and common beach sand and put through an exhaustivepurification process. In this form, silicon is the purist industrialsubstance that man produces, with impurities ... Read More

A Study of Proper Radioactive Waste Disposal (1831 words, 2 pages)

Radioactive Waste DisposalRadioactive wastes, must for the protection of mankind be stored or disposed in such a manner that isolation from the biosphere is assured until they have decayed to innocuous levels. If this is not done, the world could face severe physical problems to living species living on this ... Read More

A Close Examination of the Hand-Grip Dynamometer (645 words, 2 pages)

Hand- Grip DynamometerHand-Grip dynamometer are used to measure the strength and endurance of the muscles in your forearm, and to a lesser extent your hand. Using a handgrip dynamometer will increase your performance at work, improve posture, decrease chances for injury, and prevent low back pain. Endurance is the ability ... Read More

An Essay on Bio-Ethics (454 words, 1 pages)

Bio-EthicsThe issue of bio-ethics presents a myriad of new dilemmas all of which have arisen in the recent past, and must be addressed in the near future. The majority of these questions stem from the introduction of new, genetically-engineered organisms. These organisms, or at least many of them, are created ... Read More

An Overview of Polyurethane (937 words, 2 pages)

PolyurethanePolyurethanes are very versatile thermoset plastics that were originally developed for military use by Otto Bayer in the late 1930 s. They are so versatile that they can be made into a compound as soft as bubble-gum, or they can also be formed into compounds that are as hard as ... Read More

An Analysis of Plutonium (2086 words, 3 pages)

Plutonium, Our Country's Only Feasible SolutionAbstractShould we begin to manufacture one of the most destructive and infamoussubstances on the face on the Earth once again? The engineers say yes, butthe public says no. The United States stopped making this element with theban on manufacturing nuclear weapons. But with the continuing ... Read More

Biology Essay Examples