879 words - 4 pages
Experiment 1 Lab Report
Procedure:
(I)In the first part of the Experiment four standard solutions were prepared and were mixed as shown below in the table then Transferred the correct amount of dye solution with water into each test tube. Then the solution was thoroughly mixed and stirred with a glass rod. Clean and dry the stir rod every time you use them.
Sr number.
Dye Solution(mL)
Distilled water(mL)
Concentration
1
1
9
0. 1
2
2
8
0. 2
3
4
6
0. 4
4
5
5
0. 5
Then recorded the absorbance-concentration data for all the four standard solutions, after that we use the wavelength of the light to analyze the experiment according to the color chosen. Empty and
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2331 words - 10 pages
It was in 1883 when Osborne Reynolds, a famous scientist and engineer tried to experiment on the relationship between the stability of fluid motion and the transition to turbulence. His final apparatus consisted of a glass-sided tank, 6 feet long, 18 inches deep and 18 inches wide. Inside it was a glass tube with `a trumpet mouth of varnished wood, great care being taken to make the surface of the wood continuous with that of the glass'. On the right-hand side, the tube was connected to an iron pipe equipped with a valve which could be controlled by means of a long lever. On the left-hand side is the device for introducing a streak of dye into the trumpet, while a float and dial indicated
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Stanford Prison Experiment 6The Stanford Prison ExperimentYour NameInstructors NameCourse NameDue DateINTRODUCTIONUnderstanding human beings, their thoughts, feelings, and behaviors has always been a fascination of society. While human beings, as animals, are dependent upon a certain number of biological imperatives; the most basic needs, wants, and desires. Psychology looks not solely at the physical but the psyche of human beings. They seek to understand why some people react differently to differing situations and are some behaviors able to be triggered based on a scenario or created environment. Psychology has always simulated environments in order to gauge people's responses or to see
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384 words - 2 pages
decrease. This is because the water particles move from a high attention to a low concentration. As the solute concentration gets higher and the water concentration will get lower, therefore the water particles will move out of the potato and into the solution outside because the concentration outside the potato is lower. Therefore the higher the solute concentration the more mass the potato will lose.
Method
Cut equal-sized pieces of potato Blot with tissue paper and weigh Put pieces into different concentrations of sucrose solution for a few hours Remove, blot with tissue paper, and reweigh.
Fair Test
Here are the key factors that I incorporated into my experiment to make it a fair test
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526 words - 3 pages
Alejandra Torres
06/23/18
Sociology 101
10am - 12:10pm
I coordinated my “Do Nothing Experiment” at the entrance of Target on a
Saturday evening. Fortunately I had picked a good hour, because it was pretty busy.
People came in with their kids, spouse, or friends. Most of them looked rushed as they
hurried to get a cart and speed walk to their destination, but a few of them looked
relaxed as they stopped at starbucks to grab a drink, and browsed the $1, $3, and $5
section. As far as I know no one noticed me, I had 2 people glance over at me for a split
second, but went on with their shopping without a word or a smile. Everyone was to
busy with their needs to try and focus on what i was doing
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2349 words - 10 pages
) sunflower oil concentration,
Quadrant C did not have peas added,
and Quadrant D included 10 black-eyed
peas with a high (20 ml/kg) concentration (Figure 1). Five male and five female beetles were
USC ID: 8870
LAB SECTION: 13148
3
then added to Quadrant C. Their sex was determined by placing each beetle under a dissecting
microscope and examining the sex-specific size and coloration of their posterior abdominal
plates. In the Petri dish, the beetles, initially placed in Quadrant C, were able to move freely from
quadrant to quadrant. The experiment was conducted in a total of 16 plates that were left at room
temperature over the course of a week. After one week, peas were removed from the plates and
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925 words - 4 pages
Gardens snails’ response to environment change Lily Espinosa
Introduction:
The invertebrate that was chosen for the experiment was the Snail Gastropoda. Snails like moist and shady areas, to protect themselves from harmful weathers. Snails also like soil and fresh leaves because they have easy access to food and moist conditions. Snails don’t like pees and tomatoes and its unsafe for them to consume pasta. Salt and water also both kill snails, this is because snails drown in water easily and salt dehydrates the snail leaving it to die. Snails are hermaphrodite and nocturnal.
Hypothesis:
VARIABLES
Control- normal or ideal conditions
Dark, damp and humid conditions.
Independent
(What and how
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450 words - 2 pages
Lab Experience Report Format Prevention I 111-114 AB
Lab # & Title Name: Karnik Patel
( Lab 3 - Chocolate cookie experiment pH=7.0 ) Date: September 21, 2018
Objective: (1)
Why are you doing this? Point form.
· This lab is to practice everything we have learned in all our previous labs and lectures, also on all of the inter dental products available for all types of patients that have specific needs.
· To compare pH levels and BFS sheets from previous labs to see
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435 words - 2 pages
1
ChE 494/598: Homework #1 (Group Assignment), due Tuesday, Jan. 24
1. Please identify a challenge that the science and engineering community is facing and write a
T.I.M.E. problem statement.
2. Please discuss individual and/or group goals within your homework group. Select one of them
and write a S.M.A.R.T. goal.
3. Famous Card Drop Team Exercise (The following exercise is an adaptation of a famous
experiment popularized by W. Edwards Deming.)
There are 3 roles associated with this exercise: a “Machine”, an Operator and a Manager.
Work Rule #1: a. The machine stands with one arm fully extended at shoulder height,
b. As carefully as possible, the operator aligns the hand of the machine
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559 words - 3 pages
water. Prevents contamination and kills all unwanted microorganisms.
2. Clean bench with disinfectant solution, this will kill microorganisms that could contaminate the experiment.
3. Measure 9.2g of agar powder and 500ml distilled water in a conical flask, and hold the flask above a flame whilst constantly stirring the mixture while heating.
4. Boil the mixture for a minute, and then proceed to remove it from heat.
5. Use the sterilized thermometer to monitor the temperature until it falls to 45-50℃
6. Pour about 3mm depth of melted agar into each sterilized petri dish. Don’t let the conical flask touch the petri dish, cover the dish immediately to prevent contamination and tilt the dish
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1726 words - 7 pages
Summary
The purpose of Experiment 4 was to determine the effects of concentration on the amount of light transmitted through aqueous solutions.
The general procedure used in this experiment was to first prepare an undiluted sample of copper sulfate by obtaining two clean cuvettes. One of the cuvettes was used as a blank sample filled with deionized water which served as a solvent, and on the other cuvette, it was rinsed out with 0.5 mL of the copper sulfate solution and filled up with about 80% of the same solution. The second cuvette served as our undiluted solution. Next, 3 diluted solutions of copper sulfate are prepared. The first diluted solution was equal to 50% of the stock copper
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Pathos
Logos
Informative Speech Outline
General Topic
Specific Purpose
Thesis-My purpose is to persuade my audience that it is not morally acceptable to
experiment on non-human animals to develop products & medicines that benefit human
beings.
I.
a. Did you know that 100 million animals are killed in U.S laboratories for biology
lessons, medical training, curiosity-driven experiments and chemical, food and cosmetic
testing?
b.My purpose is to persuade my audience that it is not morally acceptable to
experiment on non-human animals to develop products & medicines that benefit human
beings. Inform you about the dangers & how inhuman
c. Many believe that hurting helpless animals is
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673 words - 3 pages
Title:
Paper on Water Cup Inversion Experiment
Submitted By: Theodore Xavier Pueda
Submitted to: Mr. Roach
Title: Paper on Water Cup Inversion Experiment
Testable Question: Does the volume of water affect the time for paper to drop from cup?
Hypothesis: As the volume of water increases, the time for the paper to fall off the cup stays the same.
Experimental Design: Different volumes of room temperature water will be poured 9 similar cups, starting with 10 mL and increasing by 10 mL each time. A piece of paper will be placed on top of the cup and the cup will be inverted.
Independent Variable: Volume of Water (mL)
Dependent Variable: Volume of cup (mL)
Rim diameter of cup (cm)
Temperature
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1352 words - 6 pages
. Science tells us that objects themselves possess the colours they do not absorb. Because plants do not absorb green, they must themselves be green (Canna.com.au, 2017). The colour lights to be used for this experiment will include green, blue, red, yellow, clear and black.
The aim to this experiment is to observe the growth rate of plant under different colour of light and to determine which colour could improve the productivity and thus used as sustainable sources in plantation. It is hypothesised that that the plant with clear plastic will grow the best because the white light contain all the primary colours in it. The colours of the rainbow, red, orange, yellow, green, blue, indigo and violet
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537 words - 3 pages
EXP 38: Qua. NH4+, Mg2+, Ca2+, Cu2+
➢ Experiment 38
· Skip parts A and B (NO FLAME TESTS)
· Only doing parts C-F
· Start warm/hot water bath in fume hoods incase needed later.
· Groups must grab one known/reference solution and one unknown (write letters down)
· ▪ One lab partner will do experiment with known/reference solution.
· ▪ Other partner will do experiment with unknown to compare with known.
· All blanks must be filled out excluding first two flame tests.
THE FOLLOWING PROCEDURE SHOULD BE DONE FOR BOTH REFERENCE AND THEN UNKNOWN.
TEST TUBES SHOULD BE HELD WITH TEST TUBE CLAMPS TO AVOID ACCIDENTAL SPILLING OF CHEMICALS ON STUDENTS WHILE HOLDING TEST TUBES.
Part C – Fume Hood
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1.The figure above is the comparison of the R() correlator for different centralities (40% - 50%, 50% - 60%, 60% - 70%). The concave shapes of the results at all the centralities indicate the presence of CME-driven charge separations. The opening of the concave shape for 60% - 70% centrality is narrower than the others (magnitude of a1 is the largest among these); this indicates the CME-driven charge separation signal is the strongest. The decreasing width of the opening with increasing centrality is an expected result since in the Au+Au collision; a higher centrality means that the spectator particles are larger (? More of the spectators will remain intact). As a result, the magnetic field
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1200 words - 5 pages
Free
Running Head: A Class Divided 2
2
A Class Divided
Contents
Summary 3
Hypothesis 3
Independent variable 4
Dependent variables 5
Students behaviour 5
Phonic card exercise 6
Present day Class 7
References 8
Summary
A class divided experiment was conducted by Jane Elliott, internationally known teacher, lecturer, diversity trainer, and recipient of the National Mental Health Association Award for Excellence in Education. In response to the assassination of Martin Luther King, Jr. in 1968, Jane developed a controversial and astonishing experiment. This experiment labels participants as inferior or
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548 words - 3 pages
just too hard to retrieve for them. (Wayne Weiten 2011) Mnemonic This is a mnemonic device that anyone can use to remember their vowels. (A, E, I, O, U, ) Ants eat ice-cream on umbrellas. It represents, how anyone can remember their vowels by retaining these certain words.
Yes, this mnemonic device would help someone remember their vowels because it uses the levels of processing theory. Structural Encoding, Phonemic Encoding, and Semantic Encoding. (Wayne Weiten 2011) Recall Human memory recall experiment #1, I remembered 9 words. This experiment taps into the short term memory Human memory recall experiment #2, I remembered 7 words.
People seem to do worse on experiment #2 than
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924 words - 4 pages
that music has positive effects on the brain. She proceeds to further discuss the idea that music being played in the background further enhances activity in one's mind (O'Hare). To support her claim, she mentions Frances H. Rauscher and Gordon L. Shaw's experiment. They conducted the experiment and in the results of their experiment they found that after listening to some compositions of Mozart before performing a mental task, Mozart's music was able to improve performance in mental tasks (O'Hare). The results of their experiment showed "that playing music in the background can have positive effects on memory recall, particularly spatial memory recall and this is known as the Mozart effect
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1249 words - 5 pages
Stanley Milgram and Philip G. Zimbardo both address instances in which the hierarchy between authorities and subjects is clearly defined in an experimental setting. In Stanley Milgram's article "The Perils of Obedience," the experimenter researched the effect of authority in relation to obedience. The experiment involved a teacher and a learner, in which the learner would receive shocks if he/she failed to memorize a series of words (Milgram 78). However, the learner was an actor that did not truly receive shocks (Milgram 78). Moreover, the author concludes that individuals obey out of fear or a desire to please others, even when performing against their own better judgment. Comparatively
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