References: Iyengar‚ S. S.‚ Lepper‚ M. R. When choice is demotivating: Can one desire too much of a good thing? Journal of Personality and Social Psychology‚ 2000‚ 79: 995-1006. •Maushart‚ S. (Presenter). Multiple Choice‚ Episode 1 -For the Options Generation‚ the paradoxes of choice abound -like the couple who lived happily ever after...and then got married
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concentration is increased then the rate of reaction will increase. If the enzyme concentration is decreased then the rate of reaction will decrease. Controlled: temperature Independent: % catalyze concentration ( Dependent: rate of reaction (mm/s) Materials: Mortar and pestle Graduated cylinder Distilled water Test tubes Chicken liver (or any other liver) Sterile transfer pipet (Dropper) Sterile weigh boat Hydrogen peroxide Razor blade Cutting board Electronic balance Timer Ruler
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Tori Suchy Physical Science Honors 1st block October 4‚ 2012 Balloon Powered Car Problem: In order to create a race car that can travel a minimum of eight meters powered by a nine inch balloon. We need incorporate Newton ’s Law of Motion including speed‚ velocity‚ and acceleration. Hypothesis: If a car were to be made out of homemade materials‚ then it would be possible for it to travel 8 meters powered by a nine inch balloon. Independent Variable: building the car from homemade materials
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Introduction The aims of the lab session was to familiarize with the principles‚ operation and application of a light spectrophotometer. This report discusses an experiment to study the relationship of absorbance and concentration‚ the interaction of electromagnetic radiant energy(ERE) and matter which is an important aspect of the Beer-Lambert ’s Law. This law states that the absorption of a compound is directly proportional to the concentration of that particular compound. This is because (a &
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References: http://webs.mn.catholic.edu.au/physics/emery/measurement.htm#Measurement http://www.digipac.ca/chemical/sigfigs/experimental_errors.htm http://www.tsb.gc.ca/eng/rapports-reports/rail/2011/r11v0057/r11v0057.pdf
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blue-black when starch and enzyme solutions are added because the enzyme didn’t digest the starch. However‚ if the optimum pH is added 1 " H o w A m y l a s e Wo r k s . " L e s s o n S n i p s . L e s s o n S n i p s ‚ n . d . We b . 1 0 J a n 2 0 1 1 . < h t t p : / / w w w. l e s s o n s n i p s . c o m / d o c s / p d f / a m y l a s e w o r k . p d f > . 2 Senese‚ Fred. "How does starch indicate iodine?."General
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Experiment Title: Torsion Vibration. Introduction : Torsion is the twisting of a metallic rod shaped object‚ when a torque is applied on two sides’ perpendicular to the radius of a uniform cross-sectional bar. Objective : Determining the natural frequency of a system undergoing tortional vibration. Theory : Using Newton’s second law of tortional system. ( [pic] …………………. ( Equation 1 ) where Io = mass moment of inertia of the disk Hence‚ [pic] ……..……
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Abstract: This report presents the reason why the ocean does not freeze in the winter. Since the ocean consists of salt water‚ an experiment was done to test the effect of freezing on salt water compared to pure water. The experiment was conducted three times in order to obtain accurate results and eliminate errors. In addition to the salt and pure water experiment‚ a variation of this experiment was created to test other options. In the variation experiment the effect of freezing on sugar water
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pleiotropy is the single gene controlling or influencing multiple (and possibly unrelated) phenotypic traits. Mutation in this type of gene will simultaneously affect more than one trait. An example is phenylketonuria‚ a human disease caused by mutation(s) in a single gene that codes for the enzyme‚ phenylalanine hydroxylase. The disease is characterized by mental retardation and reduced hair and skin pigmentation. List and explain other factors that
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photochemical change. The light required for a photochemical reaction may come from many sources. Giacomo Ciamician‚ regarded as the "father of organic photochemistry"‚ used sunlight for much of his research at the University of Bologna in the early 1900’s. One of the oldest and most studied photochemical reactions is the photoreduction of benzophenone (diphenyl ketone). It was discovered that solutions of benzophenone are unstable to light when certain solvents
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