Lab Essays and Term Papers
Last update: August 17, 2014-
Succession Lab
Succession, the process of a community changing over time, can be broken down into sub groups such as ecological, primary, pond, and secondary. Ecological succession being the most basic. In the Succession Lab, we observed a community in a ecosystem. As we recorded the data each class, we observed that succession takes place with rapid speed for in each observation, a new specimen is identified. A niche is how the organisms live, what their role
Rating:Essay Length: 736 Words / 3 PagesSubmitted: January 12, 2010 -
Solutions Lab
SC IS 3.2.1 LAB 3.2.1. Solutions Lab Background: A solution is a homogeneous mixture of one or more solutes dissolved in a solvent. • solvent: the substance in which a solute dissolves to produce a homogeneous mixture. • solute: the substance that dissolves in a solvent to produce a homogeneous mixture. Note that the solvent is the substance that is present in the greatest amount. Water is considered the universal solvent. The amount of solute
Rating:Essay Length: 753 Words / 4 PagesSubmitted: January 12, 2010 -
Physical Science Lab #5
Physical Science lab #5 Objective The goal of this experiment is to develop a theory, which allows us to understand the motion of a marble. Materials Wooden roller coaster, marble, ruler, timer, clamp, physics stand. Theory In this experiment, we are finding the Conservation of Energy. Energy is neither created nor destroyed. Energy is summed up into two different properties: Potential energy and Kinetic energy. The law of Energy states that: Total Energy = Potential
Rating:Essay Length: 902 Words / 4 PagesSubmitted: January 14, 2010 -
Physics Lab
Introduction The purpose of this lab is to examine the motion of an electron, when it encounters a constant magnetic and electric field. We will also observe when the electric field and magnetic field will cancel each other out. This will lead to the electron having no net force acting upon it. By adjusting the values for the magnetic and electric fields, we will be able to check the different paths the electron follows. From
Rating:Essay Length: 674 Words / 3 PagesSubmitted: January 15, 2010 -
Lab on Matter
I. Introduction A. Purpose: the purpose of this experiment was to determine if the distance between matter effects the time it takes for the matter to reach thermal equilibrium. B. Hypothesis: If the distance between the matter is decreased then the time it takes for the matter to reach thermal equilibrium will decrease. C. Science concepts: Temperature- measure of the motion of molecules Thermal equilibrium- when two pieces of matter are the same temperature Kinetic
Rating:Essay Length: 478 Words / 2 PagesSubmitted: January 18, 2010 -
Yak Lab
Yak Lab Natural selection is the process by which favorable heritable traits become more common in successive generations of a population of reproducing organisms, and unfavorable heritable traits become less common. Natural selection acts on the phenotype, or the observable characteristics of an organism, such that individuals with favorable phenotypes are more likely to survive and reproduce than those with less favorable phenotypes. If all the offspring that organisms can produce were to survive and
Rating:Essay Length: 612 Words / 3 PagesSubmitted: January 18, 2010 -
Lab Report on Ideal Gas Law
Ideal Gas Law Lab 1. Procedure: First, we used a balance to weigh the canister of gas, and recorded that mass as the original weight. Then, we filled a large bucket with water and recorded the temperature. We then filled a small test tube with water at the same temperature and poured that water into a graduated cylinder to measure the original volume of water in the tube. We then poured the water back into
Rating:Essay Length: 383 Words / 2 PagesSubmitted: January 18, 2010 -
Lab Report
For along time I sat and thought Scrimmaging for something to say Some words that would hold a meaning To each of us on graduation day I thought of the broken promises The facts That no one could ever seem to uphold And alas I stumbled upon my speech There is nothing left but the truth to be told These past four years, we have seen our share Of sorrow, and loss and pain Schedule
Rating:Essay Length: 354 Words / 2 PagesSubmitted: January 20, 2010 -
Beet Lab
MATERIAL AND METHODS Stability of cell membrane using pH For the lab experiment for testing the stability of beet cell membranes using pH, many materials were used as follows. Obtaining a beet we punch out cores, using a cork borer. After washing the cores we put each one inside a separate test tube, and added a different pH solution in each one. After 3 minutes in these exposure solutions, we took the beet out with
Rating:Essay Length: 592 Words / 3 PagesSubmitted: January 20, 2010 -
Yield Lab
Abstract: All the materials were measured and weighed. It was found in the experiment that the yield of copper hydroxide in 40%. Introduction: The copper (II) sulphate is then placed in 100 mL of distilled water. Then 20 mL of CuSO4 is measured and placed 100 mL of distilled water. This can later be weighed to determine the mol of CuSO4 and the mol/L concentration. Then this was used to find out how many mL
Rating:Essay Length: 908 Words / 4 PagesSubmitted: January 22, 2010 -
Lab Procedure
Problem: What is the pH level of each of the liquids. Materials: Laptop, pH probe, Interface, bottle of clear liquid, bottle of white liquid, bottle of semi-cloudy liquid, paper towels, 2 small beakers. Procedure: Get a laptop. Take it to your area and open it up. Press and hold the power button until it makes a sound. Take the power wire for the Interface and plug it into the wall. Then plug the USB cable
Rating:Essay Length: 283 Words / 2 PagesSubmitted: January 26, 2010 -
Reaction of Metals Lab
I. Title: Reaction of Metals II. Problem: The purpose of the experiment was to determine if and how different metals react to different solutions. III. Hypothesis: IV. Materials: Dropper, Beakers, wax pencil, Goggles, eight test tubes, a rack for the tubes, three strips of Zinc, two strips of Copper, three strips of Magnesium, steel wool, Lead nitrate, Silver nitrate, Copper sulfate, Magnesium chloride, Zinc chloride, Sodium chloride, and Potassium. V. Procedure: In tube 1 add
Rating:Essay Length: 250 Words / 1 PagesSubmitted: January 28, 2010 -
Chemistry Lab Measurement and Uncertainty
I.PURPOSE OF EXPERIMENT The purpose of this lab was to determine the magnitude of the uncertainties produced when making measurements using common lab equipment. II.APPARATUS AND MATERIALS NEEDED safety goggles distilled water (at 20°C) laboratory apron dropper laboratory balance 2 objects of unknown mass standard masses graduated cylinder, 10-mL graduated cylinder, 100-mL III.PROCEDURE Part A: Estimating the Uncertainty of a Balance 1.We put on lab aprons and goggles. Then, we used the zeroing adjustment to
Rating:Essay Length: 1,567 Words / 7 PagesSubmitted: February 3, 2010 -
Lawrence Livermore Labs
The Lawrence Livermore National Laboratory is a United States Department of Energy National Laboratory, based in Livermore, California and run by the University of California. The laboratory is one of two in the nation which is designated to design nuclear weapons. Its research, however, has been expanded to include general energy and environmental issues, as well as issues dealing with bioscience. The laboratory’s mission statement is currently “to promote innovation in the design of
Rating:Essay Length: 266 Words / 2 PagesSubmitted: February 5, 2010 -
Lab: Effect of Temperature on the Catalase Enzyme
Lab: Effect of Temperature on the Catalase Enzyme Background Information: Catalase is an enzyme which is commonly found in mammalian animals, such as, but not limited to, humans and cows. Catalase’s function in the body is to dissolve hydrogen peroxide. Without the aide of Catalase we would die as hydrogen peroxide is poisonous to humans. Catalase works with the hydrogen peroxide molecule because the substrate (hydrogen peroxide) has a shape which corresponds to the enzyme
Rating:Essay Length: 546 Words / 3 PagesSubmitted: February 8, 2010 -
Fruit Fly Lab
Fruit Fly Lab Introduction The major topic of this experiment was to examine two different crosses between Drosophila fruit flies and to determine how many flies of each phenotype were produced. Phenotype refers to an individual's appearance, where as genotype refers to an individual's genes. The basic law of genetics that was examined in this lab was formulated by a man often times called the "father of genetics," Gregor Mendel. He determined that individuals have
Rating:Essay Length: 565 Words / 3 PagesSubmitted: February 9, 2010 -
Lab Report
Observations for Step 1 In step one of the experiment, we synthesized 1-Bromoalkane from 3-metyl-1butanol and 1-pentanol using SN2 reaction. We started our experiment by collecting all the necessary glassware for the experiment. We were divided into groups each of us having two separate apparatus using the two different alcohols. We then added the HBr, our alcohol and sulfuric acid to the round bottom flasks and began heating to a boiling using a low setting
Rating:Essay Length: 366 Words / 2 PagesSubmitted: February 10, 2010 -
Identifying Organic Compounds Lab Report
Purpose: To use indicators to test for the presence of organic compounds in certain substances. Hypothesis: Honey will contain sugars, egg white contains proteins, corn oil contains lipids, oats contains starches and proteins, gelatin contains sugars and proteins, potatoes contain starch, and apple juice contains lipids and sugars. Materials: 9 test tubes Test tube rack Test tube holder Grease pencil Hot plate 20 ml honey solution 20 ml egg white and water mixture 20 ml
Rating:Essay Length: 730 Words / 3 PagesSubmitted: February 12, 2010 -
Gun Powder Lab Follow-Up Work
Gun Powder Lab Follow-up Work In this lab we had to isolate several products and discover ways to filter a certain item out. The nitrate salt was contained in a medium sized plastic re-sealable container. In order to isolate the nitrate salt, we first placed some nitrate salt from the container into a large beaker. We than filled that beaker up with hot or warm water. Than we realized that method was taking too long,
Rating:Essay Length: 758 Words / 4 PagesSubmitted: February 14, 2010 -
Bio153s Lab 6 Assignment
2006 Bio153S Lab 6 Assignment Name: Student Number: Section and TA: The cranium: 1) What modifications do you see in the bird skull that suggest adaptations to the “avian lifestyle”? (2 marks) The modifications that are seen in the bird skull that suggest adaptations to the “avian lifestyle” would be that the bones of the skull have fused together to make the cranium very lightweight. Since the cranium is very lightweight, it has less mass,
Rating:Essay Length: 712 Words / 3 PagesSubmitted: February 14, 2010 -
Pendulum Lab
Pendulum Lab A pendulum is something hanging from a fixed point which, when force is applied, swings back, forth, up, and down due to gravity and inertia (Beynon 1). Pendulums can range in shape, size, and weight. An example of a pendulum can range from a swinging chandelier to a washer tied to some string and hung from the ceiling. Galileo was a famous scientist who studied pendulums. He discovered that the period, or time
Rating:Essay Length: 275 Words / 2 PagesSubmitted: February 26, 2010 -
Lab Budgeting and Cost Accounting Under Drgs
Lab budgeting and cost accounting under DRGs Medical Laboratory Observer, Feb, 1985 by W. Glenn Cannon Cost accounting is not a solution to management problems. It is a management tool designed to provide information that facilitates sound decisions. The two primary objectives of cost accounting are 1) to match cost with revenue and 2) to match resource consumption with the units of service provided. Under the DRG system, matching revenue with cost and evaluating appropriate
Rating:Essay Length: 1,230 Words / 5 PagesSubmitted: March 6, 2010 -
Chemistry Lab Filtering Technique
Objective: The purpose of the lab is to learn filtering techniques. Specifically, to form and filter a calcium carbonate precipitate using a Buchner funnel. Procedure: a.) Prepared a mixture of .5 M calcium nitrate (45 mL) and .01 M sodium carbonate by combining and stirring the two liquids in a beaker. Allow the mixture to stand. b.) Prepare the filtration assembly. The assembly consists of a tapered flask with a buchner funnel inserted in the
Rating:Essay Length: 393 Words / 2 PagesSubmitted: March 8, 2010 -
Basic Lab Measurements and Equipment
Basic Lab Measurements and Equipment Purpose This lab experiment displays the accuracy of scientific measuring equipment. This experiment also helps to familiarize the students with these instruments. Procedure: Measure Volumes and Masses 1. Obtain a 400mL beaker and record its mass in grams. 2. Add 40mL of water to the beaker and record the volume. 3. Records the beaker’s mass now with the added water 4. Transfer the water from the beaker to a 50mL
Rating:Essay Length: 288 Words / 2 PagesSubmitted: March 16, 2010 -
Circuits 1 Lab Formal Project
UNIVERSITY CIRCUIT I LAB EEL 3111L FORMAL REPORT #2 Based On: EXPERIMENT #5 INSTRUCTOR: XXXXXXX I. ABSTRACT The following experiment confirms the validity of the Superposition Theorem. In the experiment in order to acquire the results by means of mathematically deriving them, one must use not only the Superposition Theorem but also Nodal Analysis and Current Division to get the same results as getting them experimentally. II. INTRODUCTION The idea behind the Superposition Theorem is
Rating:Essay Length: 529 Words / 3 PagesSubmitted: March 19, 2010