Science Essays Examples For College & High School Students in PDF

14278 total results

An Analysis of the Topic of the Drop Zone (1326 words, 2 pages)

Drop Zone Drop zone is 224 feet high. The ride takes a total of three seconds to fall. Assuming that the ride is in total free fall, the ride is accelerating the most at the point right before it begins to slow down or decelerate. Its greatest speed is 62 ... Read More

An Introduction to the Light Dependent Process (570 words, 2 pages)

In the Light Dependent Processes (Light Reactions) light strikes chlorophyll a in such a way as to excite electrons to a higher energy state. In a series of reactions the energy is converted (along an electron transport process) into ATP and NADPH. Water is split in the process, releasing oxygen ... Read More

An Introduction to Phrenology (521 words, 1 pages)

Phrenology "Before phrenology all we knew about the brain was, how to slice it" -- Richard Chenevix, 1828 (Victorian Web). Phrenology was a popular pseudoscience that was founded by Franz Gall. He believed that by examining the bumps on a person's skull, you could determine ones personality characteristics, moral characteristics, ... Read More

An Analysis of the Types, Steps, and Benefits of the Concept of Benchmarking (1150 words, 2 pages)

Benchmarking is one of the various tools available to reengineering teams. "Essentially, benchmarking means looking for the companies that are doing something best and learning how they do it in order to emulate them" (Hammer Champy 137). However, there is one problem with benchmarking. It can restrict a reengineering team's ... Read More

An Experiment on Investigating Onion Cells with a Microscope (314 words, 1 pages)

Aim To investigate onion cells and to practise using the microscope. Materials Equipment - Glass slide - Cover slip - Onion layer (1 cell thick) - Iodine stain - Microscope - Water syringe Method 1) If necessary, carefully clean the cover slip and glass slide (always hold the glass by ... Read More

Nuclear Reactors: The Advantages, Disadvantages, Types, and Necessary Resources (721 words, 1 pages)

Nuclear reactors are a great achievement in the human race. Reactors where originally used for research into the world of nuclear energy. The first reactor was built and sustained by the Italian scientist Enrico Fermi, at the University of Chicago in 1942. It is also interesting to know that even ... Read More

The Efforts and Problems in Making Nuclear Fusion the Next Large-Scale Energy Source Using Deuterium and Tritium, Two Isotopes of Hydrogen (767 words, 2 pages)

Nuclear Fusion is constantly present in our solar system. In the core of the sun, Hydrogen is converted to Helium providing enough energy to sustain life on earth. This process occurs at temperatures of 10-15 million degrees Celsius. Scientists are now trying different methods here on Earth to make fusion ... Read More

A Biography of Alfred Nobel, the Founder of the Nobel Prize (213 words, 1 pages)

Alfred Bernhard Nobel was born in Stockholm, Sweden in 1833. In 1842 his family moved to St. Petersburg and he was privately schooled in Natural Sciences, Languages, and Literature. After this, he traveled abroad to several countries to study chemical engineering. Nobel gained popularity by inventing dynamite. Prior to this ... Read More

The Characteristics, Sources, and Uses of Nitrogen, a Gaseous Chemical Element (472 words, 2 pages)

Nitrogen, the gaseous element that makes up the largest portion of the earth's atmosphere, was discovered by the British physician Daniel Rutherford in 1772 and recognized as an elemental gas by the French chemist, Antoine Laurent Lavoiser about 1776. Nitrogen, symbol N, was derived from Greek, it means liquid air. ... Read More

The Definition and Everyday Examples of Sir Isaac Newton’s Three Laws of Motion (505 words, 1 pages)

Newtons Three Laws of Motion We experience each of Sir Isaac Newtons laws everyday. In a car, pushing a car, or even in a fight. All of these laws have to do with motion. You can experience the first law in a stopping car, the second when you are a ... Read More

An Overview of the Concept of Elements (1514 words, 3 pages)

At first glance, nature appears to consist of countless numbers of very different materials. The world thus appears to be an extremely complex mixture of many different materials. But philosophers and scientists have long held another view of the world. They have found it difficult to believe that nature is ... Read More

The Threat of Increasing Bacterial Resistance (637 words, 3 pages)

Bacterial resistance is a problem that has profoundly impacted the medical community. Bacterial resistance results when bacteria become resistant to individual antibiotics through the development of specific defense mechanisms which render the antibiotic ineffective. This problem has become evident in recent years as numerous cases have been reported in which ... Read More

The Absolutist View of Space and the Relationist View of Space (445 words, 1 pages)

Throughout the history of science there has always been competition among rival theories. An unusual case of interest arises when the theories cannot be tested by any conventional means. Such is the case with different views of space. Isaac Newton, Carl Leibniz, and Emmanuel Kant all proposed different theories about ... Read More

An Argument in Favor of the Benefits of Cloning (1211 words, 2 pages)

To Clone, Or Not To Clone? Did you ever imagine having a child that is the exact replica of you? Did you ever imagine of having the cure for heart disease or cancer? Well, these fantasies are not far from reach. The way we could reach these fantasies is through ... Read More

A Research on the Impact of the Materials Used to Make a Golfball on the Distance Traveled by a Golfbball (4545 words, 7 pages)

Introduction This year I have decided to test a question that has been an interest of mine for quite awhile. I am going to try to find the perfect set of materials for a golfball to give the ball the most carry. I have chosen this specific topic because of ... Read More

The Importance of Chemical Reactions in Chemistry (2006 words, 8 pages)

Chemical reactions are the heart of chemistry. People have always known that they exist. The Ancient Greeks were the firsts to speculate on the composition of matter. They thought that it was possible that individual particles made up matter. Later, in the Seventeenth Century, a German chemist named Georg Ernst ... Read More

Evolution and the Facts of Science (2620 words, 7 pages)

Proof of Evolution Evolution is a fairly simple idea. A broad definition of it is Species change over time. Evolutionary theory is supported by a huge body of evidence, including the fossil record and observation of organisms alive today. That is the reason it is embraced by most mainstream scientists. ... Read More

The Construction of the Panama Canal: A Great Engineering Work in History (841 words, 3 pages)

The canal is joining the atlantic and pacific oceans. It runs from Cristobal on lemon bay, a part of the Caribbean sea, to Balboa, on the Gulf of Panama. The canal is slightly more than 64 km long, not including the dredged approach channels at either end. The minimum depth ... Read More

The Anti-Human Cloning Perspective on Why Genetic Manipulation Should Be Banned (1341 words, 2 pages)

HUMAN CLONING "A clone is a cell or an organism that is genetically identical to another cell or organism"(Sangeeta). Cloning is the process of "creation of an organism that is an exact genetic copy of another". Cloning is done by a process called "somatic-cell nuclear transfer". In this, the nucleus ... Read More

A Study on the Appearance, Diet, Reproduction, and Survival Techniques of the Homo Erectus (755 words, 2 pages)

Animalia, Chordata, Mammalia, Primates, Hominidae, Homo erectus The appearance and body structure of the Homo erectus is very similar to present humans. The skull of the Homo erectus, however, is noticeably smaller. Brain capacity ranges from 800-1000 cc corresponding with a retreating forehead and thicker skull bones. Likewise, there are ... Read More

Fermentation of Ethanol: An Amazing Large Impact on the World (3606 words, 5 pages)

It is impossible to set a date as to the first time fermentation was performed. It is possible, however, to guess, and this guess is roughly 8,000 years ago. Wine has been written about for centuries, in the Greek and Roman myths and scriptures. The Greek god of wine, Dionysius, ... Read More

An Arguement of How True is Evolution Theory (2424 words, 7 pages)

Is evolution just a theory?? A basic argument used by creationists is that evolution is "only a theory and cannot be proven." This creationist argument is based on the false assumption that the only way to "prove" evolution is for someone to actually observe large evolutionary changes, for example birds ... Read More

Vic’s Essay on Cloning and Its Constrictions (575 words, 2 pages)

Cloning Essay submitted by Vic ALL CONSTRAINTS UPON CLONING SHOULD BE LIFED Cloning has been a very controversial topic since it affects moral values of human beings and other living things alike. In February 1997 scientists in Scotland announced the birth of the first cloned sheep named Dolly, this heralded ... Read More

Observation Before and After a Chemical Experiment (1801 words, 5 pages)

Observations Before Experiment Barium Hydroxide. Ba(OH2) . 8H2O -The barium hydroxide appeared to have a slight tint of blue giving it the appearance of an off white substance. -The substance needed to be crushed or grinded down into finer pieces to allow for better reaction with the ammonium thyocyanate, NH4SCN. ... Read More

A Paper on Black Hole Formation (713 words, 2 pages)

Black Hole Formation Stars are affected by two main forces Nuclear fusion, and gravitation Black Holes are the result of an imbalance of these two forces. Nuclear fusion- the outward force from the star's centre and gravitation- the force pulling inwards. These two processes balance one another until all the ... Read More

An Analysis of Experiment of Plant on Their Thermoregulation (584 words, 1 pages)

I believe that some plants produce as much heat for their weight as birds do, which are the greatest heat producers of all. It is even harder to believe that some are able to thermoregulate, which means that they actually alter their heat production to keep their temperature constant in ... Read More

A Paper on Human Biology and Evolution (1377 words, 4 pages)

Human Biology and Evolution Humans are Alive The earliest human life form can be traced back more than 3.5 billion years ago. Humans are said to be descendants of a single celled ancestor. Although they are different in size and shape all basic functions are alike. The more complex the ... Read More

Scott Maier’s Paper on Importance of Chemistry to Biology (501 words, 1 pages)

Why is knowledge of chemistry important to biology? Maier, Scott Advanced biology 10799 Biology is the study of all living things and chemistry is the study of chemicals and their interactions. So, how are they related? Our bodies are made up of hundreds and hundreds of chemicals. We just dont ... Read More

A Paper on Aromatic Hydrocarbons (309 words, 1 pages)

Aromatic Hydrocarbons Structure of Benzene - simplest aromatic hydrocarbon is benzene, C6H6 - sweetish-smelling liquid first isolated in 1825 by Michael Faraday from the oily residue that had collected in gas lines - this formula has so few hydrogen atoms for the number of carbon atoms that an unsaturated molecule ... Read More

Darwin’s Theory of natural selection with the ideals of genetics. (616 words, 1 pages)

We act like animals, we eat like animals, and we are animals. The many theories of evolution such as Darwin's theory of evolution prove to us that we choose to believe that we are not animals when we really are. Evolution is the sequencial process of change over periods of ... Read More

Science Essay Examples