Osmosis Experiment Subject: Professor Egg-avier Duration: 3 weeks (Oct 2nd – Oct 16th) Week 1 On October 2nd my group was giving a raw egg (weighing 58.8 grams) and placed it into a clear mason jar with 200mL of vinegar. The ph levels of our vinegar equaled a 2 which tells us that vinegar is a fairly acidic liquid. Once submerged in the vinegar‚ little bubbles began to appear around the egg’s shell. We believed this to be carbon dioxide escaping from the shell. We left our egg to sit in the
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crimes occurring when there is police present. These strategies were made to reduce the crimes and make the public feel more safe in the street. The Kansas City Experiment started on October 1972 and continued to 1973 ‚ it was administered by the Kansas City Police Department and evaluated by the Police Foundation. The Kansas City Experiment tested the use of preventive patrol on crime rates and citizens fear of crime. The police foundation divided Kansas into fifteen different areas‚ and those fifteen
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Observations of Chemical Changes Purpose: To observe some properties of chemical reactions and associate them with everyday household cleaning products. Procedure: In order to complete this experiment‚ I had to set up and organize my lab table. I used my 24-well plate‚ my 96-well plate‚ and the first experiment bag which included all of the necessary chemicals. I also had to gather 3 household cleaning products and a pipet in order to test them as well. The procedure involved was putting 2 drops of
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a tremendous variety of oxidation states that appear in its compounds. The oxidation numbers range from Mn (III) in compounds like Mn(NO)3CO to Mn (VII) in KMnO4. Compounds of manganese range in oxidation number between theses two extremes. This experiment involves the preparation of a Mn (III) complex of actylacetone (also named 2‚4-pentanedione) which is a useful starting material for the preparation of other Mn (III) compounds. Manganese (III) complexes are relatively stable and can be prepared
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Name: Lawrence D. Mandras Date: August 17‚ 2013 Rating:_____ Yr. & Course: BSED-IV Laboratory Experiment no. 2 The Living Plant Cell Objectives: * To study the different types of plant cells. * To observe plant cells as to their shapes‚ structures and function. Materials: Microscope cover slip glass slide water onion Iodine soln. hydrilla salt tomato razor blade Medicinal dropper epidermal tissue of rhoeo-discolor
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controls the melody and‚ paired correctly‚ the harmony adds a little sparkle to the piece. I think the most important thing about the melody is that it is a way for the musician to convey a message to the listeners. When we hear the song “Wrecking Ball” the melody resonates through our mind like a catchy tune. In the song the chorus would be considered the melody because that is the part everyone knows. Whether we like the song or not that part has plastered itself into our minds. Sometimes you listen
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Crater Design Experiment Aim: To see how the height in which the ball is dropped from affects the depth of the crater. Hypothesis: I predict that as the height in which the ball is dropped from increases‚ so does the depth of the crater (the data will be directly proportional). The scientific knowledge which supports this is that the golf ball has a gravitational potential energy which increases as the ball is dropped from higher heights. When the height increases the ball gains more gravitational
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Lets face facts‚ golf clubs and golf balls will get dirty after some use‚ weather it be from contact with dirty golf balls or from mud and grass stains the club has picked up from whacking the ball on the fairway. What ever it is‚ your golf clubs will get dirty. Maybe it’s just me but I can’t stand to see my clubs dirty‚ so what I do when I get back from a session of golf is take all the clubs out of my bag that I’ve used an get to work on getting all the dirt an stains off of them. Here’s what I
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designed a contraption called a “skinner box”. Just imagine a rat in a cage. The Skinner box is a special cage that has a bar or pedal on one wall that‚ when pressed‚ causes a little mechanism to release a food pellet into the cage. The rat is bouncing around the cage‚ doing whatever it is rats do‚ when he accidentally presses the bar and -- hey‚ presto! -- a food pellet falls into the cage! The operant is the behavior just prior to the reinforcer‚ which is the food pellet‚ of course. In no time
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PROCEDURE Part I Setting Up Experiment 2D: Separation of a mixture by Paper Chromatography Objectives: 1. To assemble and operate a paper chromatography apparatus 2. To study and the significance of Rf values 3. To test various food colorings and to calculate their Rf values 4. To compare measured Rf values with standard Rf values 5. To separate mixtures of food coloring into their components 6. To identify the components of mixtures by means of their Rf values Materials / Apparatus: See “Health
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