Chemistry Essays Examples For College & High School Students in PDF

1489 total results

A Lab Report on Morphology (220 words, 1 pages)

Lab ReportMorphological Unknown Lab ReportIntroductionThere are many types of microorganisms in the world that may seem alike but are very different in function and purpose. That is why when one has to find what an unknown organism is he or she sees that its difficult to classify it based on ... Read More

An Experiment to Find the Heat Fusion of Water Using a Calorimeter (327 words, 1 pages)

Heat Of FusionJason JarrellChemistry II12-8-99Heat of FusionObjective The objective of this experiment is to find the heat of fusion of water by using a calorimeter. The calorimeter will be used to melt ice in water to find the heat of fusion.Theory Heat of fusion is known to be the amount ... Read More

An Experiment to Find out the Energy Conservation of Hot and Cold Water (330 words, 1 pages)

ENERGY CONSERVATION1. How does the final temperature compare with the initial temperature of the hot and cold water for trial? The final temperature goes between the temperature of the hot and cold water. If the amount of the cold water is more then the amount of the hot water, then ... Read More

The Scientific Achievements of Dr. Brenda J. Little (499 words, 2 pages)

Dr. Brenda J. LittleDr. Brenda J. Little of the Naval Research Laboratory Stennis Space Center is the recipient of the 1995 women in Science and Engineering Award. This award recognizes specific or special scientific or technical contributions by a woman scientist in the Federal service and specific contributions made by ... Read More

Understanding the Movement of Fluids Through Diffusion (617 words, 2 pages)

Diffusion1. a) Bulk movement is the overall movement of a fluid. The molecules allmove in the same direction. Diffusion however is the random movement ofmolecules which usually results in a fairly even distribution. In otherwords the movement is not guaranteed to move in one direction but theprobability that it will ... Read More

An Argument in Favor of Creationism over the Theory of Evolution (937 words, 2 pages)

Creationism vs. EvolutionThe majority of people in this world believe that a spiritual being created earth. In fact, most religions and cultures believe the universe was created by a 'creative hand,' either a sky god or some other physical object (Encarta 1). Think of it, as a trial to see ... Read More

An Argument in Favor of the Theory of Punctual Equilibrium, a Type of Evolution (445 words, 1 pages)

Creation vs evolution, was man created be an almighty god, or is he simply a product of modern science. This question has puzzled scholarly minds for many years and yet will for many to come. The one that makes the most sense to me and has the most supporting evidence, ... Read More

An Introduction to the Analysis of Chemical Reactions (1932 words, 8 pages)

Chemical ReactionsChemical reactions are the heart of chemistry. People havealways known that they exist. The Ancient Greeks were the firststo speculate on the composition of matter. They thought that itwas possible that individual particles made up matter. Later, in the Seventeenth Century, a German chemist namedGeorg Ernst Stahl was the ... Read More

An Overview of an Experiment on the Cell Membrane Permeability (516 words, 1 pages)

Cell PermeabilityCell membrane permeability refer to the crossing of the cell membrane by substances. Substances move into or out of the cell by crossing the cell membrane. Some substances cross the membrane very easily and the membrane is said to be very permeable to these substances others move across with ... Read More

An Argument in Favor of the Existence of Aliens and UFO (998 words, 3 pages)

Aliens And UFOFor more than 50 years, UFO investigators have scoured the skies for signs ofalien life--completely snubbed by the scientific community as cranks. But today,in the first independent scientific review of UFO evidence in nearly 30 years,scientists gave a faint nod in their direction by concluding that it might ... Read More

An Argument in Favor of the Existence of Aliens and UFO (1576 words, 6 pages)

AliensThesis We once believed that Earth is the only planet in the Universe that supports life. Today there is overwhelming evidence that not only suggests, but supports the very real possibility that we may share the Universe with other intelligent beings. I. Things in the Sky A. The First Documented ... Read More

An Essay on Albert Einstein and the First Amendment rights (1020 words, 3 pages)

1St Amendment RigthsAlbert EinsteinAlbert Einstein was a famous scientist, writer and professor. He was born in Ulm, Germany,on March 24,1879. As a child, Einstein wasn't like the other boys he hated school but loved math.He was shy, and talked very slowly. He didn't participate in sports but instead played withmechanical ... Read More

An Essay on Air Pressure and Its Measurement (463 words, 1 pages)

What is Air Pressure and How is it Measured?What is air pressure and how is it measured? Air is composed of molecules. Air is matter. It has mass and takes up space. Air is composed of different gases such as nitrogen, oxygen, carbon dioxide, water vapor, and other gases. Air ... Read More

An Argument in Favor of the Availability of Plutonium for Daily Use (2240 words, 3 pages)

Plutonium Should it be Available for Daily Use?Plutonium, Our Country's Only Feasible SolutionAbstract Should we begin to manufacture one of the most destructive and infamous substances on the face on the Earth once again? The engineers say yes, but the public says no. The United States stopped making this element ... Read More

A Summary of the Ulysses Space Mission Documentary (593 words, 2 pages)

Documentary of Ulsses Mission to Space ULYSSES Mission to SpaceThe Ulysses Mission is the first spacecraft to explore interplanetary space at high solar latitudes. Ulysses is both a study of the European Space Agency (ESA) and the National Aeronautics and Space Administration (NASA) of the USA. The spacecraft and spacecraft ... Read More

An Argument against the Theory of Evolution (1863 words, 5 pages)

Do You Believe That Evolution Is True? Do You Believe That Evolution Is True?If so, then provide an answer to the following questions. "Evolution" in this context is the idea that natural, undirected processes are sufficient to account for the existence of all natural things. 1. Something from nothing? The ... Read More

Defining Element 112 (413 words, 1 pages)

Defining Element 112 Element 112, also called ununbium (Uub), chemical element with atomic number 112. It is produced artificially by nuclear fusion (in which an element with larger atoms is produced by fusing together smaller atoms from other elements). Each ununbium atom has a very large nucleus, or central mass, ... Read More

The Environmental Impact of the Current Packaging Materials (1609 words, 5 pages)

Packaging is a tool that protects and contains our goods and it should first of all provide convenience for the consumer,facilitate storage,increase self life,protect the environment and be compatible with consumer trends.To date packaging materials have been to a large extent based on non biodegradable materials,they consist a variety of ... Read More

An Introduction to the Nucleophilic Substitution Reactions (2581 words, 5 pages)

Nucleophilic Substitution Reactions The purpose of this lab is to compare the nucleophilic abilities of the addition of chloride and bromide ions to the compounds of n-butyl alcohol and tertiary butyl alcohol, in SN1 and SN2 environments. This will determine which of the anions is the better nucleophile, in each ... Read More

An Introduction to the Analysis of the Element Neon (1336 words, 3 pages)

Since its introduction to the scientific world, the element Neon has proven to be an important part of science, technology and medicine. As one of the first inert gases to be discovered, it was instrumental in providing valuable information on the make-up of the earths atmosphere. Neon has been a ... Read More

An Analysis of an Experiment of Measurement (317 words, 1 pages)

A.An experiment of measurement, in which we will measure the length from a persons back of the knee to their heel, then measure their height and plot the results on to a graph to show any relationship between the height and the length of the leg. B. The experiment being ... Read More

An Analysis of an Experiment on the Measurement of Length, Width and Height (273 words, 1 pages)

LAb1For each of these measurements the minimum uncertainty was used that is one half of the smallest division of the instrument used to measure. For the distance of length, width, and height a metre stick was used, which has a smallest division of 0.1 cm, thus the uncertainty chosen was ... Read More

An Analysis of the Laboratory Experiment on the Water Absorption (727 words, 2 pages)

Throughout the semester students examined in a step-by-step fashion, the life cycle of a typical flowering plant, the wild mustard Brassica rapa. We followed the development and growth from the planted seed to seed production in eight weeks. Students studied the life cycle of plants, understanding of how plants grow, ... Read More

An Analysis of the Purpose of the Oxygen Consumption Measurement Experiment (566 words, 1 pages)

The purpose of the following experiment is to measure oxygen consumption and dye reduction in germinating barley and corn seeds at three different temperatures (Anderson, John N, pg. 6). Oxygen consumption can be measured through a process known as cell respiration. Cell respiration can be explained as an energy yielding ... Read More

A Study on the Chemical Element of Arsenic (1235 words, 2 pages)

Arsenic is a naturally occurring element found in our Earths crust, but too much of the element in our water systems, aquifers and wells could cause serious health problems over a long period of time. It has no distinctive taste or smell. You would assume that because arsenic is a ... Read More

An Analysis of the Purpose of the Lab Experiment and the Fragments of Foreign DNA (1445 words, 3 pages)

The purpose of this lab experiment was to see if a person could use a plasmid (R plasmid) vector containing certain fragments of foreign DNA for ampicillin resistance to be used to transform E. coli (Escherichia coli) cells to give the E. coli cells ampicillin resistance. Ampicillin resistance is needed ... Read More

An Experiment on the Isolation and Purification of the Enzyme Alkaline Phosphotase from Cells of the Bacterium Escherichia Coli (3988 words, 8 pages)

The goal of this experiment is to isolate and purify the enzyme Alkaline Phosphotase from cells of the bacterium Escherichia coli. Alkaline Phosphotase is an enzyme that catalyzes the hydrolysis of phosphate monoesters in nature. A slew of different techniques are used in this set of experiments in order to ... Read More

A Description of an Enzyme as Protein Catalysts That Speed Up the Rate of Specific Biological Reactions (488 words, 1 pages)

Enzymes are protein catalysts that speed up the rate of specific biological reactions. The first thing to notice in enzyme characteristics is that enzymes are almost all proteins, often globular proteins. They are long chains of amino acid units held together by peptide bonds. Enzymes are much more specific than ... Read More

Understanding of G.L Gouy’s Concept of “Brownian” Movement” (1757 words, 9 pages)

In 1827, the English botanist Robert Brown noticed that pollengrains suspended in water jiggled about under the lens of themicroscope, following a zigzag path such as the picture on pagethree. Brown had discovered what is now known as Browian motionor Browian movement. Even more remarkable was the fact thatpollen grains ... Read More

A Report on the Project to Calculate the Density of a Regular Shaped Object Using a Beam Balance (305 words, 1 pages)

Aim To calculate the density of a regular shaped object using a beam balance.Apparatus Physical beam balance, vernier calliper, weight box a given object, Theory Density is important and characteristic property of matter. Density is the measure of the compactness of a body. After making independent measurements of mass and ... Read More

Chemistry Essay Examples