Science Essays

4,476 Science Free Papers: 3,271 - 3,300

Go to Page
• Resistance of a Wire

In this practical assessment we are going investigate how the length of wire affects the resistance of the wire. First of all we need to get some general knowledge about the terms involved in this investigation. The main term is Power which is the amount of work done or energy

Rating:
Essay Length: 301 Words / 2 Pages
• Resistance of a Wire

The resistance of a wire Planning:- Introduction: To investigate the resistance of a wire at different lengths to see whether or not a longer wire has a larger resistance than a shorter wire. Apparatus: Wire Voltmeter Ammeter Battery 2 crocodile clips Metre rule Variable resistor Diagram: Variables: Length Thickness Resistance

Rating:
Essay Length: 1,641 Words / 7 Pages
• Resistance of a Wire

Theory What is resistance? Electricity is conducted through a conductor, in this case wire, by means of free electrons. The number of free electrons depends on the material and more free electrons means a better conductor, i.e. it has less resistance. For example, gold has more free electrons than iron

Rating:
Essay Length: 2,112 Words / 9 Pages
• Resistance of a Wire Investigation

Preliminary Investigation: Aim: To investigate the main problems with my main experiment and to see how to resolve these. Preliminary Method: 1. Setup Equipment 2. Make Circuit with the set length of wire 3. Draw Results table 4. Record Results 5. Change the lengths of wire and do same steps

Rating:
Essay Length: 311 Words / 2 Pages
• Resistance of Wire

Introduction The purpose of this investigation is to expose the factors responsible for affecting the resistance of a wire in an electrical circuit. Many factors will have to be investigated prior to experimentation. A prior knowledge of electrical circuits and the factors of resistance will be required. The conclusive objective

Rating:
Essay Length: 6,826 Words / 28 Pages
• Resistnace

What is resistance? Is anything in a circuit that slows the flow down of electrons (the current) Planning Introduction Resistance is anything in the circuit that slows down the current (The flow of electrons.) If you increase the resistance then less current will flow. A variable resistor alters the current

Rating:
Essay Length: 435 Words / 2 Pages
• Resitence of Wire

Aim I am going to be studying the resistance of wire. The purpose of this investigation is to see how the length of wire affect the dependent variable, resistance. Prediction I predict that, as the length of the wire doubles, the resistance will also double, This means that the length

Rating:
Essay Length: 292 Words / 2 Pages
• Resource Gluttony

I recently watched "An Inconvenient Truth". If you have not seen it yet, open up your heart and mind, and watch it for the sake of your children and grandchildren. We are altering Earth in ways like never before. It is as if we are conducting a vast uncontrolled planetary

Rating:
Essay Length: 505 Words / 3 Pages
• Respiration

Introduction: Respiration commonly known as the inhalation and exhaling or breathing has a more little known definition. This is the definition that involves the cellular level of eukaryotic cells. Cellular respiration may best be described by the following equation: C6h1206+602-6CO2+6H20+36ATP. ATP that is the energy needed for a cell to

Rating:
Essay Length: 648 Words / 3 Pages
• Respiration and Glycolysis

Respiration can be defined as the oxidation of the end products of glycolysis with the storage of the energy in the form of ATP. Cellular respiration occurs when oxygen is available, and the products are carbon dioxide and water. There are three main pathways in the cellular respiration process.

Rating:
Essay Length: 1,192 Words / 5 Pages
• Respiration Rate of Yeast Respiration

Biology-Respiration-Rate of Yeast Respiration Aim: An investigation to find out how temperature affects the rate of yeast respiration. Variables: Fixed variables: Through out the investigation I will keep the amount of yeast/glucose solution the same (50 ml). Also the amount of time I will run the experiment for at each

Rating:
Essay Length: 2,285 Words / 10 Pages
• Respiratory Study Guide

Respiratory System The major function of the respiratory system is to supply the body w/ oxygen and dispose of carbon dioxide. Four processes called respiration: 1.) Pulmonary ventilation: movement of air into and out of the lungs so that the gases there are continuously changed and refreshed (commonly called breathing)

Rating:
Essay Length: 1,839 Words / 8 Pages
• Respiratory Syncytial Virus

Running head: (RSV) Respiratory Syncytial Virus (RSV) By Natalie Jache December 03, 2006 Respiratory Syncytial Virus (RSV) Introduction Respiratory Syncytial Virus (RSV) is a very common respiratory virus that displays mild cold like symptoms in adults and older children. In children under two, particularly those born prematurely, are immunocompromised, as

Rating:
Essay Length: 1,441 Words / 6 Pages
• Response of Americans and Filipinos to Hurricane Sandy and Typhoon Sendong

Response of Americans and Filipinos to Hurricane Sandy and typhoon Sendong The way Philippines and Americans respond to typhoons is different because at first they are different countries. As we compare this two distant lands, the factors will affect the way they respond to disasters are there economic, social, culture

Rating:
Essay Length: 402 Words / 2 Pages
• Restaurant Chains

upcoming years. As a result of the focus on full-service breakfast chains, the heart of the report is an exploration of family/midscale offerings. Attitudes toward brunch are likewise covered in the proprietary consumer research. This examination brings up an interesting conundrum--breakfast sales are rising rapidly, yet family/midscale chains show the

Rating:
Essay Length: 291 Words / 2 Pages
• Restriction Endonucleases

Introduction A bacteriophage is a virus that infects bacteria. A type of bacteriophage is bacteriophage lambda. This specific bacteriophage infects E. Coli. It is composed of protein and double stranded DNA ÐŽVdsDNA). The DNA of the phage contains around 50,000 base pairs and codes for 50 proteins. At both ends

Rating:
Essay Length: 1,226 Words / 5 Pages
• Restrictions for Donating Blood as Stated by the American Red Cross

Restrictions for Donating Blood as Stated by the American Red Cross It is said that 70% of Americans are eligible to give blood even though the criteria to donate seems quite strict. Each case is treated individually based on why the person is donating. An autologous donor is one who

Rating:
Essay Length: 561 Words / 3 Pages
• Result of Observation

Result of Observation Chemical name and symbol Physical appearance Cation of the compound Flame color NaNO3Sodium nitrate Colourless crystal Na+ Yellowish Orange NaClSodium chloride Colorless crystal Cl+ Yellowish Orange LiNO3Lithium nitrate Colorless crystal Li+ Red BaNO3Barium nitrate White crystal BaÐ† Bright yellow, lime yellow Sr(NO3) 2Strontium nitrate White crystal

Rating:
Essay Length: 1,068 Words / 5 Pages
• Rethinking Uses of Marijuana

Recently, both California and Arizona took the long needed initiative and approved the use of marijuana for medical purposes. The California bill says that patients may use marijuana with a doctor's recommendation. It does not, however, allow doctors to prescribe the drug. Arizona voters passed a bill that swings out

Rating:
Essay Length: 683 Words / 3 Pages
• Retinitis Pigmentosa

Retinitis Pigmentosa Retinitis Pigmentosa is the name given to a group of inherited eye disorders that affect the retina. The retina has rod shaped cells responsible for night vision and seeing in the dim light. The cone-shaped cells are responsible for color vision and brightness Retinitis Pigmentosa has been proven

Rating:
Essay Length: 454 Words / 2 Pages
• Retirement Decision

"The Retirement Decision" Decision Summary: I am at the 17.5 year point in my career and need to decide if I want to stay in the Navy past 20 years or retire and pursue other interests. My naval career to date has been successful and I consider myself competitive for

Rating:
Essay Length: 2,028 Words / 9 Pages
• Reverend Hale's Catharsis in the Crucible

"The sun will rise..." (pg 233). The rising of the sun is symbolic for a new beginning or enlightenment. This statement foretells of the enlightenment and transformation Reverend Hale undergoes throughout the course of the play. Depicted at first as a strong intellect, one can see that he undergoes a

Rating:
Essay Length: 644 Words / 3 Pages
• Review of Arginine-482 Is Not Essential for the Transport of Antibiotics, Primary Bile Acids and Unconjugated Sterols by the Human Breast Cancer Resistance Protein (abcg2)

The breast cancer resistance protein has been found to be a transporter that extrudes various anticancer drugs from cells, resulting in multi-drug resistance. Recent studies on tissue distribution of BCRP (breast cancer resistance protein) showed that the protein is expressed in the apical membrane of cells in tissues with excretory

Rating:
Essay Length: 1,292 Words / 6 Pages
• Review Of: Engineering, Biology, and Nanotechnology

Article: Engineering, Biology, and Nanotechnology Written by Chris Phoenix, CRN Director of Research (CRN stands for Centre for Responsible Nanotechnology) Date published: April 2004 Source: The Internet Web page: http://www.crnano.org/essays04.htm, Summary The author thesis statement is to discuss how Engineering and Biology compete and combine to form the relatively new

Rating:
Essay Length: 1,453 Words / 6 Pages
• Review: "strongest Proof Yet of Water Flows on Mars"

New York Times Article "Strongest Proof Yet of Water Flows on Mars" This article is about the resent NASA developments in their Mars exploration and research. Scientist have been trying to find signs of water or ice on the planet for many years now but this is some of the

Rating:
Essay Length: 292 Words / 2 Pages
• Reviving an Ancient Therapy to Manage Chronic Pain

Title: Reviving an Ancient Therapy to Manage Chronic Pain Reference: Podiatry Today, December 2003, pg. 46-53 Author: Nicholas A Grumbine, DPM Rating: 4/5 Abstract Objective: This article was written to increase people's awareness of leech therapy in healthcare to manage chronic pain. Case studies on were designed to determine whether

Rating:
Essay Length: 786 Words / 4 Pages
• Rhetorical Analysis of a Formal Observation Report in the Sciences

Rhetorical Analysis of a Formal Observation Report in the Sciences A good scientific writing allows for future study and survey of the experiment, meaning that it provides sufficient information for future scientist that may try to recreate the experiment for future knowledge. In Engaging Inquiry: research and writing in the

Rating:
Essay Length: 1,404 Words / 6 Pages
• Rheumatoid Arthritis

Rheumatoid arthritis is an autoimmune disease that sauses chronic inflammation of the joints. Rhematiod arthritis can also cause inflammation of the tissue around the joints, as well as other organs in the body. Autoimmune diseases are illnesses which occur when the body tissues are mjistakenly attacked by its own

Rating:
Essay Length: 459 Words / 2 Pages
• Rheumatoid Arthritis

Rheumatoid arthritis is an inflammatory disease, primarily of the joints, with autoimmune features and a complex genetic component. INHERITANCE Occasional families show a considerable number of cases of this common disorder. A simple Mendelian mechanism could not be proved, however. Indeed, some (Burch et al., 1964) could not demonstrate significant

Rating:
Essay Length: 1,364 Words / 6 Pages
• Rheumatoid Arthritis

Rheumatoid Arthritis or (RA) is an autoimmune disease that attacks the joints and connective tissue. The result is inflammation that produces permanent damage in the joints. Rheumatoid arthritis is a chronic syndrome that tends to be progressive and destructive as compared to Osteoarthritis or (OA), which is more of

Rating:
Essay Length: 1,091 Words / 5 Pages

Go to Page