Science Essays Examples For College & High School Students in PDF

14278 total results

The Theories on the End of the World (1032 words, 2 pages)

There are many theories predicting how the universe will end. These theories are based on one four basic principles. The first principle being that the universe continues in an endless cycle. The next is that the universe will stay at its current size. The third is the universe will continue ... Read More

William Wollaston’s Original 1802 Discovery of the Spectrum of Sunlight (398 words, 1 pages)

Have you ever looked up at the sky and wondered what are those bright and shiny things up there. Stars a natural luminious body visible in the sky especially at night. A self-luminious gaseous celestial body ofgreat mass which produces energy by means of nuclear fusion reactions, whose shape is ... Read More

The Contradicting Study of the Star Formation (1617 words, 7 pages)

Our lives are intimately linked to the stars, but in ways much more down to earth than the romantic views of them. As we all know, our sun is a star and the thermonuclear reactions that are continuously taking place inside it are what provide and sustain life on our ... Read More

The Different Types of Evolution That happen in Our Planet (2542 words, 3 pages)

Evolution, a process of change through time, is what links together the enormous diversity of the living world. A lot of evidence is present that indicates that the earth has had a very long history and that all living things arose in the course of that history from earlier, more ... Read More

A Look at the Space Missions During John F. Kennedy’s Tenure (2392 words, 3 pages)

Space Flight On May 25, 1961, John F. Kennedy delivered one of the most memorable State of the Union addresses in the history of the United States. I believe that this nation should commit itself to achieving the goal, before this decade is out, of landing a man on the ... Read More

A Look at the 1995 NASA Research-Purposed Rocket Launch to Space (269 words, 1 pages)

NASA had launched a research-purposed rocket to space back in 1995. The rocket contained rodents that were pregnant. By the time the spacecraft returned to Earth, the newborns were taken to the laboratories, where several studies were done upon the little ones. It has been found that the inner ears ... Read More

The Basics of Acoustics (727 words, 2 pages)

Resonance and SoundPhysics and Music Since sound is the medium of music, most of the physics of music is the physics of sound. It's important to remember that sound waves are compression waves. You can imitate a compression wave by stretching out a slinky (you do have a slinky, don't ... Read More

Understanding How Solar Cells Work (1123 words, 4 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

The Difference Between the Thought Process of Men and Women (1112 words, 2 pages)

Misunderstanding Men and Women Since the beginning of biological time, males and females have had noticeable and unnoticeable differences. These differences have caused conflicts, which have endured time and are still a part of our modern everyday lives. However, the discord has become more defined than what is characterized as ... Read More

An Argument in Favor of the Legalization of Human Cloning (1317 words, 2 pages)

You have been told that you are unique. The belief that there is no one else like you in the whole world made you feel special and proud. This belief may not be true in the future. The world was stunned by the news in late February 1997 that a ... Read More

A Chloroplast’s Letter from Its Cell (1076 words, 2 pages)

Hola Amigos! Me llamo Carlos Plast, but my friends call me Green. Como Estas? Well, you know, A while back I got caught for smuggling, I never figured my old buddy Carlos Phil would get me in so much trouble. When the old plant community found me, well they locked ... Read More

The Reason for Doing a Shark Bissection (580 words, 1 pages)

For my project that I'm doing for biology , I'm doing a dissection. I'm going to be performing my project with Trevor Johnson , Tyler McCaskill, and Tom Shudt .The dissection that we decided to do was the dissection of a male and female shark.We are doing a dissection on ... Read More

An Analysis of Herbert Butterfield’s Classic Survey “The Origins of Modern Science” (392 words, 1 pages)

Forty years ago the British historian Herbert Butterfield proclaimed that the 'so called 'scientific revolution,' popularly associated with the sixteenth and seventeenth centuries... outshines everything since the rise of Christianity and reduces the Renaissance and Reformation to the rank of mere episodes, mere internal displacements, within the system of medieval ... Read More

The Various Techniques of Measuring Masses Using the Lab Balance (1268 words, 5 pages)

Objective To practice the various techniques of measuring masses using the lab balance. Then to gain the experience in the techniques of handling lab equipment.1. Check your balance to make sure that the pointer is calibrated or zeroed. If necessary, consult your teacher for an adjustment.2. Place a penny on ... Read More

An Experiment to Determine the Effects of Temperature on Aerobic Respiration of Germinated Pea Seeds (5358 words, 18 pages)

The first experiment involved examining the effect of temperature on aerobicrespiration of germinated pea seeds. The students testing the effect of temperature, willbe divided into two groups. The first group is Student Pair A. They will test the effect of10C, 20C and 30C temperatures on pea respiration rate. The second ... Read More

An Introduction to the Increasing the Efficiency of Memory (286 words, 1 pages)

Question 4 There are many techniques which have been developed to increase theefficiency of memory . Select 3 techniques , discuss them in detail and present examplesIn the world today it is a must to be able to remember things. Memory is a big part in everyones life. Their is ... Read More

A Research Including Colours (327 words, 1 pages)

For the procedure we will introduce ourselves individually disguised as being from another class (ie. Speech class) doing a survey. (to deviate from the purpose of our actual project) The questionnaires will then be distributed to two classes located in two different building on a college campus. The only instructions ... Read More

An Introduction to the Analysis of Heredity Traits (1237 words, 6 pages)

Heredity traits that I think have shaped me into the personI today come mostly from my maternal side. I inherited mymothers easy-going and outgoing personalty. Both of myparents are very level headed and very realistic. I aminherited both of those traits also. My father always wentout of his way to ... Read More

The Different Stages of Decomposition (2488 words, 5 pages)

One of the first things that happens after death is that the temperature in the body starts to drop. Before the temperature in the body core drops, a temperature gradient must be established from the outside to the core. After this gradient has become established the body temperature will drop ... Read More

An Introduction to the Field Guide to Geology (1423 words, 8 pages)

Field Guide to Geology A 6 page book report on "The Field Guide to Geology" by David Lambert. Lambert is known for his clear and unique style of cataloging information so that laymen can readily understand the subject. This book is no exception to that rule. It is a very ... Read More

An Introduction to the Life of Joannes Baptista Van Helmont (784 words, 2 pages)

Have you ever wondered why your plants in your house and outside lean towards the sun. In my project I hope to answer why this happens. I am going to be using lima beans to do this with. The Greek philosopher Aristotle may have been the first to attempt to ... Read More

An Introduction to the Analysis of Physical and Chemical Changes (1904 words, 5 pages)

Purpose To conduct experiments and to determine whether they are physical or chemical changesBefore we conduct these experiments there are some topics that we must discuss. As I stated in the purpose, in this lab we are going to be looking at some experiments, and we have to determine whether ... Read More

The Effect of Predator Prey Relationship in Regulating Populations (314 words, 1 pages)

Give an account of the ways in which biological control can be used to control pest numbers.The effect of predator-prey relationship in regulating populations has been exploited by humans as a method of controlling various pests. Biological pest control is where the natural predators (agent) of the pest ((target) are ... Read More

NASA and the European Union Reports Massive Arctic Ozone Loss (258 words, 1 pages)

NASA and EU Report Massive Arctic Ozone LossScientists from NASA and the European Union blamed the long, cold winter and human-made pollution for one of the largest ozone losses to record. The study was conducted between January and March with the use of NASAs high-tech ER-2 plane. This plane is ... Read More

An Introduction to Nuclear Energy (585 words, 2 pages)

When dealing with the world's present sources of energy, the two most popular forms are nuclear and energy by fossil fuels. How long will these supplies last? Are they the most effective? Is it harmful to the environment? All of these questions must be addressed. Below is a description of ... Read More

An Introduction to the Analysis of Nuclear Power (589 words, 1 pages)

Nuclear Power has its advantages and disadvantages. However it is a lot safer than most people think. The chances of a meltdown or a radiation leak are extremely small. There are many safety features, which make nuclear power one of the safest electricity sources. And every nuclear power plant is ... Read More

The Properties of the Space Phenomenon Called the Black Hole (3076 words, 4 pages)

Every day we look out upon the night sky, wondering and dreaming of what lies beyond our planet. The universe that we live in is so diverse and unique, and it interests us to learn about all the variance that lies beyond our grasp. Within this marvel of wonders, our ... Read More

A Report on the Natural Resources Used in Our Daily Tasks (613 words, 2 pages)

There are hundreds of natural resources that the world relies on for everyday tasks. We use natural gas to heat our homes and office buildings. We use oil to lubricate the motors in automobiles and heavy machinery. We even use coal as a source of heat and energy in many ... Read More

A Research on the Nemesis Theory by Dave Raup and Jack Sepkoski (4264 words, 7 pages)

The "Nemesis Theory" was an outgrowth of the discovery of Alvarez et al., that the impact of a large (10 km diameter) comet or asteroid was responsible for the great mass extinction that took place 65 million years ago.Studies of the fossil record by Dave Raup and Jack Sepkoski shows ... Read More

An Experiment With Multiple Regression and Correlation (745 words, 2 pages)

Multiple regressions and multiple correlations deals with the relationship of one variable compared with a number of other variables. It is similar to the bivariate correlation because it describes the degree of linear relationship between two variables. Though the multiple correlation assigns one variable to be the criterion or dependent ... Read More

Science Essay Examples