| 1. | lab write up
... In this lab you will find the mass and volume of two metals and compare them to the rest of the class and determine the uncertainty of measurements with the equipment. ...
4- In this lab, why do the best lines go through the original point? ...
VII – Conclusion
This lab seemed to be ...
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| 2. | Lab
Every Monday afternoon, I was required to go to a such thing called lab. This chemistry lab was fun and exciting, and I learned many things such as the goals accomplished below, plus a lot of other things on the side. The most interesting of them was the last lab accomplished. ...
Every...
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| 3. | Lab Safety
There are many rules or "protocols" that should be followed in a lab environment. In this situation there are ten basic rules that must be followed at all times while participating in lab experiments. These are here for our own safety and should be followed for this reason.
The first rule is th...
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| 4. | Lab animals used for Science
... Pigs being used to help a woman live, that is wonderful. New studies show that experiments are being conducted on lab animals, are rendering aid to humans. ... These animals yield themselves to save human-kind.
Scientists have recently found that they are able to grow actual organs on th...
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| 5. | bio lab report
... Explanation of results and observations:
In the middle of our lab period, the plants started dying and becoming weaker due to lack of water. ... Only 1 seed per cup were able to make it through the lab. Most never germinated and others simply died in the middle of our lab period. ... Conclu...
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| 6. | crossing and lab of mnm bags
The Crossing
¡§The Crossing¡¨ covers the trials and tribulations of General Washington, early before and after the retreat over the Delaware River. ... Before crossing the river they take a rest. ... When the crossing is finished, all has gone to plan; the Hessians lay in slumber in their ...
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| 7. | Lab Write Up
Lab Write-Up
Objective-
Purpose of Lab
The purpose of this lab is to establish if there is a chemical reaction between copper (Cu) and Silver Nitrate (AgNO3). ...
Hypothesis
I hypothesize that they new compound that had formed will be made up from the elements, Copper (Cu), and Silver (Ag...
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| 8. | vlsi lab4
Objective The objective of lab 4 was to learn how to use the IC graph software to do the physical layout. The objective was to also check the layout against design rules for detection of rule violations and to verify the layout against the transistor level schematics, and spice parameter files. The ...
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| 9. | Reactions
Tyson Stokes
Reactions Lab
4th Hour
The purpose of the synthesis reaction between 2Mg + O2 „³ 2MgO was for us to see what the reaction would do in real life. ...
The purpose of this lab was so that we could get hands on experience and see what the reactions actually look like for ourselves ...
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| 10. | Time
Conclusion- The result of this experiment, with the assumed data, was with an increase of centripetal force comes an increase in tangential velocity. My hypothesis was exactly correct, however with this lab I learned why it was correct. This lab had much room for error and although my groups data wa...
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| 11. | physiology lab
Physiology of the Circulatory System
Purpose:
10 A & B: Experiment to; learn how to measure heart rate and blood pressure in a human volunteer, describe the effect of changing body position on heart rate and blood pressure, explain how exercise changes heart rate, determine a human’s fitness in...
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| 12. | SOLUBILITY LAB
Brian Benns Period 2/ Lab Report 9/25/03 SOLUBILITY HYPOTHESIS: Soluability is based on the polarity and charges of of the ions. A polar molecule will always disolve an ionic compound. MATERIALS: See lab packet. PROCEDURE: See lab packet IV. RESULTS: Summary sheet, question one, when the funnel is p...
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| 13. | Measuring the rate of osmosis lab report
MEASURING THE RATE OF OSMOSIS IN DIFFERING SOLUTIONS OF
SUCROSE USING DESHELLED CHICKEN EGGS
Introduction:
The problem in the lab was determining which given solutions were hypertonic, isotonic,
and hypertonic by the use of deshelled chicken eggs. ... ca/westmin/science/sbi3a1/cells/osmo...
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| 14. | my papers suck, that is why i am gettting one from you, duh
Introduction: The projectile motion laboratory consisted of a team of two building a small projectile launcher. It had to shoot between one and two meters and the projectile was not allowed to bounce. The goal of this lab was to record the time, distance and velocity of the original launch and the s...
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| 15. | Genetic Transformation
Introduction
The lab at hand tackles ‘transformation,’ a process by which the phenotype of a cell or organism is altered by the uptake of exogenous genetic material. Transformation is important because it allows biologists to use recombinant DNA to remove DNA from cells and rearrange it in a pre...
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| 16. | Alu Lab
... Kelley
Abstract: The purpose of this lab was to teach the process of Polymerase Chain Reaction to students, and using this process amplify the Alu gene, located on chromosome 8. Only part of the population carries this Alu gene. In this lab, students will see if they carry...
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| 17. | mendelian genetics
Mendelian Genetics Lab #10 In the meiosis lab, the class learned the class learned that each sexually reproducing individual carries two sets of chromosomes. Contained in these chromosomes are inheritable information that determines the characteristics each individual will have. There traits are con...
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| 18. | the chode
Purpose- The purpose of this lab experiment was to demonstrate an understanding of the relationships between position and velocity of a moving object. Also, it is to help become familiar with the computer and software. Procedure- The procedure for this lab can be found in Chapter 3, section 3.4 Equa...
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| 19. | Inorganic Synthesis Preparation of Sodium Thiosulfate Pentahydrate
Chem Lab U211
Li Yan
27 November 2003
Introduction
The purpose of this lab was to prepare an important substance, sodium thiosulfate pentahydrate, which has many uses both in chemistry lab and in everyday life. Sodium thiosulfate pentahydrate is prepared by dissolving powdered elemental sul...
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| 20. | Osmosis and diffusionOn November 10th and 11th in West Middlesex s biology lab there was an
Procedure
On November 10th and 11th in West Middlesex’s biology lab, there was an experiment conducted on how diffusion and osmosis really occur. ...
In the diffusion lab, there was a small cup obtained and then was filled with 20 drops of Iodine-Potassium-Iodine. ...
In the osmosis lab, ...
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| 21. | science lab
Lab #1: Microscope Image & Depth of Field Purpose: 1. To understand the differences between the image of an object as seen through the microscope and object as seen directly. 2. To practice microscope skills. 3. To understand what the advantages and disadvantages of higher magnifivations. 4. To draw...
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| 22. | catalyst and reaction rates
Catalysts and Rates of Reaction
Pam Zehrer Lab
Date 11-4-03
Lab Partners:
Megan Spina and
Two Classmates
The Object of this lab was to have a “hands on” experience with chemical reactions. ...
Part 1 Concentration and ...
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| 23. | Organization for Digital Photography
Organization for Digital Photography Work
Introduction
The purpose of this proposal is to explain a new way to organize the system by which digital photography work is submitted to the lab and then given back to the client for comment, and resubmitted to the lab for the final changes for a finis...
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| 24. | Chromatography
Chromatography Lab Report
Background
What do we need to know for this lab? I think good groundwork would be to know what chromatography is, what mixtures are, what is the difference between a homogeneous mixture and a heterogeneous mixture, and how can mixtures be separated.
To start off, chrom...
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| 25. | Chemistry
Derived Units Lab Period 6 Honors Chemistry 10-7-02 Candace Clark Carina Tubagika Valorie Poynor Area= LxW Volume= LxWxH D=M/V Objective/Purpose This lab of derived units is conducted to show the students that all objects small and large have a mass and take up an amount of volume regardless of size...
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| 26. | explorations lab
Andrew Healy September 14,2003 Lab2: Celestial Sphere Summary: We performed this lab to better understand the celestial sphere. The celestial sphere is a term used to describe what the stationary observer visualizes when he looks at the sky. Its appears that all the stars are rotating from east to w...
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| 27. | Diffusion Lab
... To reach equilibrium some substances must undergo diffusion, which is when substances move from an area of high concentration to an area of low concentration. A type of diffusion is called osmosis. Osmosis is just the diffusion of water. ...
The purpose of this lab is to observe osmosi...
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| 28. | jim in rain
"The solubility of a solute in a solvent at a particular temperature is the number of grams of the solute necessary to saturate 100gm of the solvent at that temperature." FACTORS AFFECTING SOLUBILITY There are three main factors that control solubility of a solute. Temperature (2) Nature of solute o...
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| 29. | osmosis lab
OSMOSIS LAB
Purpose:
- The purpose of this lab is to show the effect of concentration in osmosis.
Materials:
· Dialysis Tubing (1-10cm in length/pair of students)
· 250 mL beaker
· 50% dextrose solution (200mL/8 students)
· String
· Scissors
· Electronic Weighing Scale
Procedure:
...
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| 30. | engineering mechanics
1. In this lab we were trying to find the tension on cables that were holding up a weight. We had two different objectives. These objectives were to find the tensions on the cables when they were in two dimensional equilibrium, and three dimensional equilibrium. 2. To conduct this experiment we used...
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| 31. | Examining the Ventral Body Cavity
...
Introduction
In this lab I had the chance to observe the size, shape, location and proportion of body organs in a Rat. ... This lab was to understand better the structures in the ventral body cavity. ... When the lower region of the rat was cut I cut along the midline up to the lower jaw, ...
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| 32. | 3 Musketeers
Alka-Seltzer Lab
Tina Lee
8/26/03
Lab Partners: Ashley Taylor, Ashley Saulmon, and Matt Forrest
Problem: What effect does the temperature of the water have on the time the canister takes to pop? ...
Materials: 1 35mm film canister, stop watch, 3 packets of Lemon/Lime alka-seltzer, thermo...
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| 33. | Cleanliness of Water Chemistry
... Cleanliness of Water
II.
The Purpose of this activity was to determine how much residue could be found in an amount of water taken from the sinks in our chemistry lab stations in the new High School Chemistry Lab.
During the process of determining this we had to use: scales, sinks, beakers...
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| 34. | Exploring Chemical Reactions
Different metals react in certain ways when physically bonded, some will chemically bond and some will do nothing at all. In this series of experiments we tested how some metals and elements reacted to others. This showed tendencies of some chemicals to react in certain types of conditions and with ...
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| 35. | osmosis
Egg Lab: Osmosis
For the egg lab my group and I were faced with the problem to determine how an egg will react in different solutions. ...
Substance Amount present when egg was put in Amount present when egg was removed
Vinegar 200 mL 161 mL
Syrup 200 mL 245 mL
Water 200 mL 150 mL
...
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| 36. | Weathering Sediments
Weathering Sediments In Lab 5 we experimented with sedimentation and cementation, as well as the rate of sedimentation. In the first part of the lab we set out to make out own rock. To stimulate sediment we used some gravel and sand. To create the actual rock we needed something to speed up the lith...
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| 37. | density
Laurie Alogna
9/23/03
Density
Density is defined as the compactness of matter by a ratio of mass (or weight) per unit volume, D= M/V. In this exercise we computed the mass and volume of various samples, and calculated their Density.
In exercise one of this lab exercise we had to calculate ...
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| 38. | time of reaction
... ge should occur, like all of the above plenty of water should be used to clean it up. In the cases of where water cannot be used due to a hazard (i.e. the electronic balance) use a vacuum cleaner and then wipe thoroughly with a damp clothe to clean. At 0.1M Silver Nitrate is an irritant and will...
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| 39. | Drosophila fruit flys
Drosophila Lab Report
By
Matthew ElenskyTheory
Drosophila melanogaster, or fruit flies, are easy to culture and are used widely in genetic experiments. ...
Basically, for his project, a person would culture the fruit flies, breed them, and analyze the cross results. For the average fruit f...
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| 40. | Comentario de la casa de munecas
Animals and Plants in Pond and Canal Animals and Plants that inhabit in the Pond and canal live in different ecosystems; this ecosystem is a complex, interrelated network of lining organisms and their non-living surroundings. In the following Laboratory report I will review and compare the different...
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| 41. | Chemistry lab
I. Isotopes of "Pennium" II. Purpose: Determine the percent abundance of each of the two "isotpes" of the "pennium". III. Safety: Handle the triple beam balance with care. VI. Materials: Pennies from before 1980 and pennies after 1980, beaker, calculator V. Apparatus: Triple beam balance VI. Procedu...
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| 42. | isotopes
Jennifer Kim PM essentials Mr. Verbarg 11/26/03 I. Purpose I am performing this lab because we are going to learn about the Bunsen burner. What I intend to learn in this lab is more about the Bunsen burner. There isn’t any relevant background information from class that pertains to the lab being per...
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| 43. | AP bio lab 1
Lab One: Diffusion and Osmosis
Introduction
1A. ... In this lab, we wanted to demonstrate how diffusion works. ... Diffusion
1. ... Test the 15% glucose/1% starch solution for the presence of glucose using test strips. Record the results in Table 1.1. ... Place 15 mL of the 15% glu...
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| 44. | Titration Lab
Assessed Titration Lab Objective: The point of this experiment was to find the concentration of KOH. Materials: 1) Burette 2) Pipette 3) Beakers 4) Conical Flask 5) Indicator 6) HCl 7) KOH Procedure: 1) Label and fill two beakers with KOH and HCl 2) Pour a little bit of HCl into the burette to rinse...
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| 45. | Importance of Osmosis in Cells
INTRODUCTION
Osmosis occurs when different concentrations of water are separated by a selectively
permeable membrane. ... So we thought that osmosis would not occur. ...
The research and experiment are important to help the reader or researcher understand how cells
go...
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| 46. | Lab Report
Lab Report Terrestrial Isopods Darren Baker PERIOD 5 10/3/03 Lab Report Question: What is the effect of temperature on the orientation behavior of terrestrial Isopods. Research: 1. General Observation of pill bugs 2. General Description of the “Niche” of a pill bug 3. Classification 4. Environment 5...
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| 47. | Animal Behavior
Lab Report (Animal behavior) My lab is a study of the behavior of pill bugs. Pill bugs are crustaceans that belong to the isopod family. Animal behavior is defined as the way in which animals behave and interact with their environment. I will also be investigating the effects of sugar water on the p...
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| 48. | Historical Amnesia in Japan
Historical Amnesia in Japan
During World War II, Japan set up a lab headquartered in northeast China to research biological and chemical warfare (Time, 1). This lab was manned by Japan’s imperial armys Epidemic Prevention and Water-Supply Unit, better known as Unit 731. ... Japan’s Ministry ...
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| 49. | The Journey of Man
Spencer wells is a scientist who traveled six continents to follow the footsteps of mankind from where they originated to where they migrated. His first thoughts that man started in Africa and migrated to Australia. Wells tells us that we can trace our origins to Adam and Eve, but Eve came first by ...
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| 50. | Animal Testing Controvesy
... In the biomedical world, it is almost impossible to create new medicines and treatments without the use of lab animals, but at the same time many people feel that doing testing on animals is cruel. When comparing what the criteria and definition of cruel is, it becomes apparent that animal tes...
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