Science Essays Examples For College & High School Students in PDF

14278 total results

Nuclear Energy and the Conflict between the USA and the Soviet Union (1503 words, 3 pages)

Scientists discovered nuclear energy at the end of the nineteenth century. Within fifty years it became a decisive factor in our war with Japan and has affected international arms policies ever since. The study of nuclear energy began in the nineteenth century when Marie and Pierre Curie discovered the radioactive ... Read More

An Anatomy Lab Paper on Nutrition and Bone Growth (425 words, 1 pages)

Nutrition and Bone Growth Anatomy Lab Sec.3 For years soy has been looked at as a breast cancer and heart disease preventer, bone protecter, a lessoner of menopause symptoms and many others. Recent studies now show that weve been loading up on soy with no real clear evidence of findings ... Read More

A Paper Discussing the Nuclear Reactor Plants: How They Work, the Benefits and Results of Neglect (1607 words, 2 pages)

The term Nuclear Reactor means an interaction between two or more Nuclei, Nuclear Particles, or Radiation, possibly causing transformation of the nuclear type includes, for example, fission, capture, elastic container. Reactor means the core and its immediate container. Nuclear Reactors are used to produce electricity . The numbers of Nuclear ... Read More

A Biography of Sir Isaac Newton, the Physicist and Mathematician (492 words, 1 pages)

At his birth on Christmas day, 1642, in Woolsthorpe, Lincolnshire, England, Newton was so tiny and frail that he was not expected to live. Yet despite his boyhood frailty, he lived to the age of 85. As a delicate child, he was a loner, interested more in reading, solving mathematical ... Read More

An Argument in Favor of an DNA Identification System in the United States (529 words, 1 pages)

Should a national identification system in which each Americans DNA pattern is registered be established? Has the U.S. come to the point where we have to devise a national identification system in which everyones DNA pattern is registered in a network of computers? I believe so, and the process of ... Read More

Conducting of an Experiment in Biology Class (747 words, 3 pages)

Abstract Mr. Posgais Biology II class often pondered the thought of insects attraction to certain colors on flowers. Well, on September 14, 1999, we decided to experiment and figure out which colors on flowers were more dominant over others. Our Biology class divided up into groups of two and three ... Read More

An Analysis of the Planet Mercury (1895 words, 3 pages)

Mercury Report The magnificent planet Mercury is the planet I have chosen to research. I this report I have explained all there is to know about Mercury and its aura. The Romans gave Mercury its name after the fleet-footed messenger of the gods because it seemed to move quicker than ... Read More

Adenosine Triphosphate the Powerhouse of Muscles (3405 words, 5 pages)

The immediate source of energy for muscular contraction is the high-energy phosphate compound called adenosine triphosphate (ATP). Although ATP is not the only energy-carrying molecule in the cell, it is the most important one, and without sufficient amounts of ATP most cells die quickly. The three main parts of an ... Read More

Involvement of Meteorologist in Everyday Life Now Felt (385 words, 1 pages)

Meteorologists are very involved in the world today. You might see them on T.V or hear their voice on the radio. Wherever they are they help you in many ways. The word "meteorology" refers to the Greek word meteoron. Meteoron refers to an astronomical phenomenon. The science of meteorology was ... Read More

A Paper on the Experiment on Volume and Weight (1074 words, 2 pages)

Method 1) Take a "volume" measuring device, and fill it with the total amount of water, the bottle can hold. We then put the same, empty bottle into the container, in a way, that it sinks to the bottom of the akwarium. We can then measure the new height and ... Read More

An Essay on the Life and Achievments of Maria Motessori (429 words, 1 pages)

Maria Montessori, a famous Italian physician and educator, was born in 1870 in a town called Chiaraville. In 1876, she graduated from the medical school in the University of Rome, and became the first female doctor in Italy. Shortly afterwards, she was chosen to represent Italy at two womens conferences ... Read More

A Study on Lichens, the Nature’s Best Example of Symbiosis (581 words, 1 pages)

LICHEN. On places like tree trunks, rocks, old boards, and also on the ground grow strange splotches of various-colored plant life called lichens. They are of great scientific interest because they are not single plants instead, each lichen is formed of a fungus and an alga living together so intimately ... Read More

The Science Behind the Lightning Phenomenon (483 words, 2 pages)

Lightning is a giant electrical spark in the sky. Most of the lightning people see takes place between a cloud and the ground. But lightning also occurs within a cloud, between a cloud and the air, and between two clouds. When lightning occurs in the atmosphere, its electrical energy scatters ... Read More

A Study on Ohm’s Law and Resistance with Practical Examples (3505 words, 8 pages)

Aim The aim of my investigation is to investigate how length affects the resistance of a length of wire The resistance of a wire depends on certain factors. Some of these variables are listed below Length of wire Diameter of wire Temperature at which wire is at The material of ... Read More

A List of the Laws in Physics (438 words, 2 pages)

Laws Newtons first law of motion an object will continue in a state of rest or uniform motion in a straight line unless an eternal force acts upon it. Newtons second law of motion the rate of change of momentum of an object is directly proportional to the force acting, ... Read More

A Biography of Johannes Kepler, the Father of Modern Science (944 words, 3 pages)

Johannes Kepler was born at 230 PM on December 27, 1571, in Weil der Stadt, Wrttemburg, in the Holy Roman Empire. His family was Lutheran and he adhered to the Augsburg Confession. This adherence later caused him hardships. He was a sickly child and his parents were poor. But his ... Read More

Kilauea, the Most Active Volcano on Earth (991 words, 2 pages)

Kilauea has been erupting lava and ash since January 1983 from the east rift zone on the main island of Hawaii and is the most active volcano on earth (HCV). Kilauea is in the shield building stage. Most of Kilauea is located below sea level. It is located over a ... Read More

A Description of an Experiment on Finding Salt Concentration in a Potato Tuber (3212 words, 5 pages)

Planning Experimental Procedures The aim of my experiment is to find the salt concentration in a potato tuber. I predict that osmosis will occur between the potato tubers and the solutions. I think that the potato tubers in distilled water will increase in length and mass while the potato tubers ... Read More

Moral Issues Regarding Genetic Engineering (2209 words, 3 pages)

Keywords genetic engineering, moral issues, genetic changes, genetic technologies In Search of Perfection There is no doubt that any other field is as closely connected with human life as medicine. Yet medicine has been so greatly affected by technological advances that it has gone beyond therapy and towards the limits ... Read More

Knowledge is Power: The Importance of Informing People of Cloning (436 words, 1 pages)

Implications of cloning Many don't realize how serious the advent of cloning really is. When cloning is mentioned, half of the world thinks of Dolly, the "magical splitting sheep". But come on, doesn't it make you wonder? If a sheep can be cloned, why couldn't people? Ok, you may say, ... Read More

Short Paper on Earth’s Rotation (183 words, 1 pages)

The Earth's Rotation The Earth is rotating around an axis (called its rotational axis). Some objects rotate about a horizontal axis, like a rolling log. Some objects, such as a skater, rotate about a vertical axis. The Earth's axis is tipped over about 23.5 from vertical. How do we define ... Read More

Experiment on Affect of Water Temperature on the Reaction Rate between Amylase and Starch (726 words, 3 pages)

Aim In this investigation I am trying to find out how the temperature of water affects the reaction rate between amylase and starch. The thing that I am going change are the temperature of water, which are 10 C, 20 C, 30 C, 40 C, 50 C. The things I ... Read More

Importance of Enzymes in Biological Reactions (418 words, 1 pages)

Enzymes are biological catalysts. They increase the speed of a reaction, without being affected or altered themselves. Our bodies contain hundreds of enzymes, each catalysing a particular reaction (increasing the reaction's speed), by reducing the amount of energy required to activate the reacting molecules - the activation energy. Enzymes are ... Read More

An Essay on History of Flight Aircraft (2179 words, 3 pages)

Throughout the history of flight aircraft has seen many changing faces. From pictures and sketches of models to the Boeing 747s that takes over airports today, aircrafts are constantly changing. Once the Wright Brothers took off from Kitty Hawk, drawings became a reality, allowing man and machine to combine and ... Read More

Global Temperatures Rising Each Year (1071 words, 2 pages)

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 of glass in a car. The glass lets the sun light in to make heat but when the heat tries to get out the gases ... Read More

Experiment on Relationship between Acid Rain and the Growth of Germination on Pea Seeds (717 words, 2 pages)

Acid Rain Lab Acid rain is causing problems throughout the world. Acid rain is precipitation that has been combined with gases in the atmosphere, causing it to be slightly more acidic than normal rain. Acid rain has a PH level of about 5.0 compared to that of pure water's 7.0. ... Read More

A paper on the Effect of Gibberellic Acid and Fertilizer on Stem Elongation and Plant Development in the Brassica Rapa (1675 words, 3 pages)

The Effect of Gibberellic Acid and Fertilizer on Stem Elongation and Plant Development in the Brassica Rapa Plants growth rates can be altered using several factors. Anything from temperature, lighting, water, and nutrients can have an affect on any given plants development. Green plants cannot ingest complex molecules but can ... Read More

An Argument in Favor of Genetic Engineering (992 words, 2 pages)

Genetic Engineering A new technology is dawning on our era, a technology that could change the lives of our children and their children to come. Will this medical advancement be pursued or will it be outlawed? The medical advancement is genetic engineering, the duplicating of human cells, and people have ... Read More

The History of Gene Mapping (1885 words, 3 pages)

Gene Mapping began when the U.S. Government held a conference to explore if DNA damage occurred in people exposed to low levels of radiation in Japan after the 1945 Atomic Bombs. There, scientists quickly realized that observing the human genome could be useful in discovering environmental mutates. Shortly afterwards, Renato ... Read More

The Benefits of Genetic Engineering (1296 words, 5 pages)

The idea of studying genetic engineering and revealing those results intrigues me thoroughly. Studying these coded proteins or genes brings about revolutionary advancements in the fields of medicine and bioengineering. The possibilities that genetic engineering make are endless. For example, genetic engineering can improve nutritious quality and enhance the flavor ... Read More

Science Essay Examples