• Transfer Pipette Solution Gatorade Tubing
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    The Effect of Concentrations of Starch and Sugar Solutions on Synthetic Semi-Permeable Membranes By: Jamie Hardy Question: Is dialysis tubing selectively permeable? Hypothesis: If one has dialysis tubing, which is dipped in water, filled with Gatorade and starch and is left for 15 minutes, the sugar in the Gatorade will exit the dialysis and into the water. So the dialysis is semi-permeable. Materials: 16 cm dialysis tubing beaker cylinder test tubes transfer pipettes Gatorade Starch solution 10...
  • Hydrochloric Acid Concentration Experiment Tube
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    ll What does the Concentration have on the rate of reactionWritten by Stephen Foster Brief: To investigate the factors that affect the rate of reaction between magnesium and hydrochloric acid. Introduction: I am to investigate what effects concentration of the reactant (hydrochloric acid) has on the rate of reaction between it and calcium carbonate. Specifically I am to see weather it will have an effect on the amount of the product produced and the time in which it took place. The Definition: T...
  • Bacterial Growth Cells Plate Dna
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    Molecular Biology Abstract The bacterium used in this lab, Escherichia coli (or E. coli) is an ideal organism for the molecular geneticist to manipulate. It can easily be grown in suspension culture in a nutrient medium such as Luria broth, or in a petri dish of Luria broth mixed with agar (LB agar) or nutrient agar. Genes can be transferred between bacterial in three ways: conjugation, transduction, or transformation. Bacterial transformation involves transfer of genetic information into a cell...
  • England's First Test Tube Baby
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    England s Test-Tube Baby The first baby to be conceived outside of it s mother promises to usher in a new and maybe, a revolutionary era of human reproduction. In July, Lesley Brown was getting close to delivery. This was said to be the world s first test-tube baby at the Oldham and District General Hospital, 190 miles outside of London. The infant was created when the egg of the mother was joined with the father s sperm in a special culture medium prepared by gynecologist Patrick Steptoe of Old...
  • Carbon Dioxide Yeast Dough Experiment
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    Biology Lab Report Investigating Alcoholic Fermentation and the Affects of Yeast on Dough Aim: The aim was simply to investigate whether or not yeast had any affect on causing dough to rise when baked and to experiment with alcoholic fermentation eg. to see if it gave off carbon dioxide. Introduction: Following a few weeks of fermentation theory, groups of three to four were assigned and told to conduct a series of experiments involving the affects of fermentation. My group consisted of myself, ...
  • The Pancreas Pancreatic Cancer
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    The pancreas is located in the middle of the abdomen. It's surrounded by the stomach, small intestine, liver and spleen. It's about six inches long and shaped like a thin pear, wide at one end. It has three sections: wider right end is the head, the middle is the body and the left end is the tail. The pancreas has two functions; to make enzymes that help digest fats and proteins and the other, to produce insulin that controls the blood sugar level called glucose. It consists of Islet cells (1 o...
  • How Folate Can Help Prevent Birth Defects
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    If you plan to have children some day, here's important information for the future mother-to-be: Think folate now. Folate is a B vitamin found in a variety of foods and added to many vitamin and mineral supplements as folic acid, a synthetic form of folate. Folate is needed both before and in the first weeks of pregnancy and can help reduce the risk of certain serious and common birth defects called neural tube defects, which affect the brain and spinal cord. The tricky part is that neural tube ...
  • Sausage Making Casing Meat Place
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    Making Sausage... The Steps to Follow Wash your hands please 1. Wash the meat in the sink with cool water, allow to drain Cut the meat into smaller cubes, trim any excess gristle / sinew /connective tissue. 2. Grind the meat (be careful with your fingers), if there are problems with the grinder, contact your teacher... Keep these hints in mind -1. don't force the meat through the grinder - it will grind at its own pace 2. you may have to stop grinding the meat to clean the discs and the blade o...
  • Caves Cave Form Formed
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    Formations and Types of caves A cave is a chamber beneath the surface of the earth or in the side of a hill, cliff, or mountain. Caves vary in size and shape, and many have large openings to the surface. There are many types of caves, such as: ice caves, solution, wind, gravity-slip-block caves, fissure or rift, talus, sea, and lava tube caves. Gravity-slip-block and fissure or rift caves from in areas where there is tectonic movement, generally at faults. Sea caves form in rocks adjacent to the...
  • Terminal Velocity Ball Bearing
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    SC 1: Investigating Terminal Velocity Introduction When an object falls through a fluid it accelerates until it reaches its terminal velocity. At this speed the forces acting on it are balanced. My task is to investigate the factors that affect the terminal velocity of a falling object. Key Factors Mass of ball bearing Viscosity / density of the fluid Surface area of ball bearing Texture of the balls surface Temperature I am going to investigate how mass affects the terminal velocity. Prediction...
  • Terri Schiavo Life Or Death
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    Terri Schiavo Life or Death Terri Schiavo is a forty year old women who had a severe heart attack 15 years ago which resulted in brain damage. She had no living will so there is no legal document of what she would have wanted if she became brain damage and couldn't function on her own but her husband, Michael Schiavo, says that after 15 years of being on a feeding tube she would have wanted to die. The question is should he have the right to remove the feeding tube? Anybody who knows me will kno...
  • Test Tube Fermentation Yeast Tubes
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    Fermentation InvestigationPlanningAs a culture of yeast is merged with solution of sugar, a reaction called fermentation occurs. As products, ethanol and carbon dioxide are produced, in form of liquid and gas respectively. The reaction follows this equation: Glucose solution + Yeast Carbon dioxide + Ethanol + (Energy) And as one of the products is in the form of gas, the volume of the product can be measured to demonstrate the difference of the reaction when certain factors are changed. In the o...
  • Resonance Pure Tone
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    Resonance RESONANCE: ' The property whereby any vibratory system responds with maximum amplitude to an applied force having the a frequency equal to its own.' In english, this means that any solid object that is struck with a sound wave of equal sound wave vibrations will amplitude the given tone. This would explain the reason why some singers are able to break wine glasses with their voice. The vibrations build up enough to shatter the glass. This is called RESONANCE. Resonance can be observed...
  • Freezing Point Of Naphthalene
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    Freezing Point of Naphthalene. Purpose To determine the freezing point of a known substance, naphthalene II. Materials ring stand gas source test tube test tube clamps thermometer naphthalene Bunsen burner goggles hose stopwatch III. Procedure 1. Assemble the Bunsen burner, attaching one end of the hose to the burner and the other to a gas source. 2. Assemble the ring stand so that a ring clamp is attached to the stand holding the test tube that will be used in the experiment. 3. Fill the test ...
  • Test Tube Solution Fescn Scn
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    Work to be done: By experiments find out how chemical equilibria works. Chemicals and apparatus: Two beakers Five test-tubes Kaliumtiocyanat, KSCN 0. 002 M Kaliumtiocyanatsolution, KSCN + H 2 O Dinatriumfosfat, Na 2 HPO 4 0. 002 M Iron (III) nitratesolution, FeNO 3 0. 2 M Silvernitratesolution, AgNO 3 Lab: Lab 1 One test-tubes is filled half of distilled water (A) and another with kaliumtiocyanatsolution (B). Both solutions are colorless. Solution (B) contains SCN-. I add five drops of iron (II...
  • Acids And Bases Clear Red
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    What substances turned into Acids & What substances turned into Bases Hypothesis: Procedure: Pour about three milliliters of your sample in each of three test tubes. Pour the same amount on a watch glass. In the first test tube put in two drops of methyl orange and record the color. In the second test tube, put in two drops of bromothymol blue and record the color. In the third test tube, add two drops of phenothalein and record the color. Using the watch glass sample, touch the tips of a red an...
  • Memo On Research On Crutches
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    To: Management Committee Date: 01 September, 2003 From: Adrian Chew, Research & Development Manager Subject: Research Of New Composite Crutches Our Research and Development Team had come up with a new design for crutches, using carbon-reinforced composite materials. The following presents the highlights of our research on the advantages of the new composite crutches... Material of the crutches Conventional crutches are made of aluminum; in contrast, Carbon-reinforced composite are used in the ne...
  • The Earthworm Body Tubes Blood
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    EARTHWORM: Kingdom Animalia Phylum Annelida Class Oligochaete The earthworm is the best-known member of the phylum Annelida, the segmented worms. Annelids are bilaterally symmetrical, and their bodies are divided into segments both externally and internally. They have a tube-within-a-tube body structure. The outer tube is the body wall, while the inner tube is the digestive tract. The cavity between the outer and inner tubes is the coelo m. CIRCULATORY SYSTEM As food is digested, the blood in t...
  • Molar Concentration 100 Color Solution
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    Objective: Visually determine the molar concentration of a dichromate ion in an unknown solution of Cr 2 O 7 using color bracketing. Background: Many ions impart a color to the aqueous solutions in which they are dissolved. The intensity of the color is directly proportional to the concentration of the ion. When dissolved in water, the dichromate ion imparts a faint yellow color to the solution. The concentration may be determined by visual color comparison to a set of prepared standard solution...
  • Lab Determination Of A Chemical Formula
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    Determination of a Chemical Formula Introduction: This lab will show us how we can use acid-base titration to find molecular formulas of compounds. Specifically, we will be working with Zinc, Calcium, Hydrochloric Acid, and Water. Data: Calculations: See notebook tear-out under "Calculations" heading Discussion: The purpose of this lab was to observe the reactions of metals with water and acid. We used Zinc and Calcium specifically. As I expected, the Calcium samples were more reactive to both w...