Biology Essays Examples For College & High School Students in PDF

10822 total results

The Testing of the Forces Affecting the Distance of a Margarine Tub Travels (1395 words, 6 pages)

Testing The Forces Affecting The Distance A Margarine TubTravels.IntroductionWe are testing for actions or influence that accelerates, or changes the velocity of, an object. An object experiences a force when it is pushed or pulled by another object. For example, shoving a stationary ball applies a force that causes the ... Read More

The Development of Quantum Mechanics (2045 words, 4 pages)

Fury of the Quantum FistQuantum mechanics will be our most powerful tool in the world of tomorrow. For those of you that did not know this, quantum mechanics is a physics system or theory using the assumption that energy exists in discrete units. It is probably no exaggeration to say ... Read More

An Analysis of the Radiotelephone Concept in the History of Science (2352 words, 4 pages)

RADIOTELEPHONEIn addition to the wireline telephones described in The telephone instrument , there exist a number of wireless instruments that are connected to the public switched telephone network (PSTN). At the present time, these wireless telephones generally fall into one of three categories cordless telephones, cellular radio systems, or personal ... Read More

An Overview of the Nomads and the History of Marine Science (1087 words, 3 pages)

Morris 1Rich Morris OCE 1001Sept. 09, 2000 Ch.2 A History of Marine ScienceThe early history of marine science started about 11,000 years ago. Nomads began voyaging into east and central Europe, and across the plains of central Asia. They journeyed to the shores of northeastern Asia and crossed the Bering ... Read More

An Overview of Pyrotechnics (493 words, 1 pages)

PYROTECHNICSPyrotechnics special effects are widely used in motion picture production to create all types of effects involving explosions, fires, light, smoke and sound concussions. The types of pyrotechnics materials used include flash powder, flash paper, gun cotton, black powder (gunpowder), smokeless powder, detonator explosives, and many more. They are used ... Read More

A History of the Discovery of the Individual Elements and the Creation of the Periodic Table (1847 words, 3 pages)

A necessary prerequisite to the construction of the periodic table was the discovery of the individual elements. Although elements such as gold, silver, tin, copper, lead and mercury have been known since antiquity, the first scientific discovery of an element occurred in 1649 when Hennig Brand discovered phosphorous. During the ... Read More

An Analysis of the Mars Exploration Mission by the Pathfinder in 1997 (1639 words, 3 pages)

On July 4, 1997 the Mars Pathfinder finally came to rest after ninety minutes of bouncing around on the Martian surface. The purpose of the mission was to explore the Martian surface, collect and analyze the chemical makeup of Martian rocks, and test the new technology and software put into ... Read More

An Analysis of the Superstring Mystery and the Theory of Everything at the Center for Nuclear Research (544 words, 1 pages)

The Superstring Mystery -- Theory of Everything?In 1979 two scientists met at The Center for Nuclear Research (CERN). These men s names are Michael Green and John Schwarz. John Schwarz had been working on the Theory of Superstrings Theory of Everything. Michael Green the younger of the two men was ... Read More

An Analysis of the Subatomic Particles and the Atom (3864 words, 6 pages)

The atom, although small in size and great in number, is one of the greatest enigmas in the science world today. Over 200 different subatomic particles have been found, and scientists are still looking for more. The most basic parts of the atom are the electron, the proton and the ... Read More

The Causes and Characteristics of Lightning Strikes (1749 words, 4 pages)

Lightning is a discharge of static electricity in the atmosphere, which causes a bright flash of light. When lighting goes through the air, it heats the air to degrees hotter than the sun's surface about 50,000 degrees fahrenheit. This heating causes the air to expand and contract. This causes the ... Read More

The Role of White Dwarf Stars in Astronomy (2629 words, 5 pages)

Although they are tiny in size, white dwarfs have played a great role in astronomy. These compact stars are very different from familiar objects like our sun. They also pose a seemingly endless series of puzzles, whose solutions provide new insights into many areas of physics and astronomy. To unravel ... Read More

An Analysis of the Process of Star Creation and the Expansion of the Universe (1947 words, 3 pages)

As you gaze up into the night sky, you may ask yourself how were all those stars created? Many astronomers have asked themselves that same question for centuries, but now we have an answer to most of the puzzle. As our knowledge of stars and the universe expands, the puzzle ... Read More

The Launch of Sputnik 1 (3044 words, 5 pages)

Few Americans considered the gathering on Friday, October 4th , 1957, at the Soviet Union's Embassy in Washington, DC, to be anything out of the ordinary. It was the appropriate climax of a week-long set of international scientific meetings. It was also, in the cynical Cold War world of international ... Read More

Spatial Database Systems and Management of Multidimensional Discrete Data (2300 words, 7 pages)

Title Spatial Database Systems and Management Multidimensional Discrete data Abstract Spacial database systems offer the underlying database technology for geographic information systems and other applications. Several terms have been used to describe database systems offering such support, including pictorial image, geometric, geographic, and spatial. The terms pictorial database system and ... Read More

A Journey to Space (1243 words, 4 pages)

Shawn McCartneySpace FlightSpace flight is the penetration by humansinto the universe above the earth s atmosphere.The purpose of space flight is to suite the scientific, physical and mental needs of humans. Some reasonsgoals for space flight is to provide earth s communications, expandingthe knowledge of humanity and exploration of the ... Read More

An Essay on Space Colonization by Humans (450 words, 2 pages)

SPACE COLONIZATION My five minute essay topic is space colonization. There are three places that I know of that the human race has thought of colonizing . They are The largest asteroid that is orbiting in our solar system, the Moon and Mars.An asteroidThere is an asteroid that is orbiting ... Read More

An Analysis of the Waves of the Sound and the Vibration Effect in the Nature (854 words, 2 pages)

SoundSound surrounds us at all times. The ring of an alarm clock or the whistle of birds may wake us up in the morning. Through out the day, we hear a variety of sounds for instance, the banging of pots and pans, the roar of traffic, and the voices of ... Read More

An Overview of the Simple Applications of Solar Energy and the Water Heating Techniques (1987 words, 4 pages)

THE SOLAR RESOURCESIMPLE APPLICATIONS OF SOLAR ENERGYThe Sun's rays have long been used as the heat source for evaporating and distilling water. Solar evaporation has always been an important salt-production process. Salt water is pumped into shallow ponds that are open to the Sun. As the water evaporates, its salts ... Read More

The Presentation of Solar Energy Concept and the Methods of Thermonuclear Fusion (2546 words, 12 pages)

Presentation DialogueSOLAR ENERGY. All life on Earth depends on energy from the sun. Solarenergy is the source of energy for photosynthesis. It provides the warmthnecessary for plants and animals to survive. The heat from the sun causeswater on the Earth's surface to evaporate and form clouds that eventuallyprovide fresh rainwater.Solar ... Read More

An Analysis of the Single Junction Solar Cells and the Fabrication Process (2057 words, 4 pages)

Single junction solar cellsThe most common structure is a semiconductor material into which a large-area diode, or p-n junction, has been formed. The fabrication processes tend to be traditional semiconductor approaches diffusion, ion implantation and so on. Electrical current is taken from the device through a grid contact structure on ... Read More

An Overview of the Concept of Soil and Fertilization in Agriculture (352 words, 1 pages)

Soil and FertilizationSoil is the superficial covering of most of the earth s land area. This soil is made up of minerals and organic particles produced by organic decay. The main components of soil are undissolved inorganic compounds, soluble nutrients, organic matter, water, and gases. The physical nature of soil ... Read More

An Analysis of the Life on the Basis of the Compounds of Sodium in Biology (245 words, 1 pages)

Life could not exist without compounds of sodium. These compounds hold water in body tissues, and a severe lack of sodium can cause death. Blood contains sodium compounds in solution. In its pure form sodium is a silver-white, metallic element. One of the most common sodium compounds is table salt, ... Read More

An Overview of the Snakes and Lizards Type Squamata in the Animal Kingdom (1186 words, 5 pages)

SquamataSnakes and LizardsSquamata is the dominant order of living reptiles composed of the lizards and snakes.The group first appeared in Jurassic times and today is found in all but the coldest regions.Various forms are adapted for burrowing,or aquatic lives,but most squamata are fundamentally terrestrial.There are about 4700 Recent species2200 lizards ... Read More

An Analysis of the Properties of Fireworks in the United States (608 words, 2 pages)

Properties of FireworksIn America there is nothing greater than celebrating an American holiday by blowing up a small part of it. Many people do this using fireworks. Is there nothing more exciting than watching a sparkling aerial repeating light up the sky. Not only are fireworks a good source of ... Read More

The Importance and Use of Magnets (1029 words, 2 pages)

For levitation in ancient times men knew of a special kind of rock that could pull other rocks of the same kind and pieces of iron toward themselves. They were called lodestones. Today man uses the same force exerted by electromagnets and permanent magnets to provide magnetic aide to trains ... Read More

A Biography of John Harrison, the Clock Maker Who Determined Longitude (849 words, 2 pages)

Longitude The True Story of a Lone Genius Who Solved the Greatest Scientific Problem of His Time is written by Dava Sobel. The book is called Longitude because it is about a clock maker who was able to determine longitude. Determining longitude was the superlative scientific question in the eighteenth ... Read More

An Analysis of the Natural Phenomenon of Lightning Also Known as Nature s Fireworks (1064 words, 3 pages)

LIGHTNING...NATURE'S FIREWORKSWHAT IS LIGHTNING?The action of rising and descending air within a thunderstorm separates positive and negative charges. Water and ice particles also affect the distribution of electrical charge. Lightning results from the buildup and discharge of electrical energy between positively and negatively charged areas. The average flash could light ... Read More

An Analysis of the Characteristics and the Kinds of Lighting (2254 words, 4 pages)

Have you wondered why streetlights are yellow, or why the year 2000 cars have brighter headlights and they are a different color? Have you ever wondered how the indiglo light on your watch works, or why it glows green and not white? And did you know that same indiglo light ... Read More

The Properties of Light (834 words, 3 pages)

Light is what we see. It can be thought of either as a particle, (the photon), or as a wave. The photon we can easily think of as a small dot travelling through space at the speed of light. Each photon has a particular colour or energy. But how do ... Read More

An Analysis of the Variety of Lichens Distributed Worldwide (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

Biology Essay Examples