Sometimes the data we need may not be available from internal or external sources. In such cases‚ we may have to obtain data by conducting our own survey or experiment. In a survey‚ we do not exercise any control over the factors when we collect information. For example‚ if we want to collect data on the money various families spent last month on clothes‚ we will ask each of the families included in the survey how much it spent last month on clothes. Then we will record this information. A survey
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brand of glue * The type of surface Dependent Variable: * The strength of the glue Controlled Variables: * Same amount of glue (one swipe) * Same amount of time to dry * Same person conducting experiment * Same time of day * Same amount of experiments * Same Net Weight (21g) * Same brand of surfaces * Same person timing (Jet) * Same time and place of investigation * Same length of surface Plan Aim: To see which brands of glues stick the
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Design Experiment: Enzyme Inhibitors. Research question: What is the effect of adding lead nitrate solution on the activity of amylase enzyme? Aim: To test the effect of adding nitrate solution on the activity of amylase. Background Information: Inhibitors are molecules which repress or prevent another molecule from engaging in a reaction. They are substances that attach themselves onto an enzyme and reduce or prevent the enzyme’s ability to catalyse reactions. Competitive Inhibitors are inhibitors
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Nonverbal Experiments Everyone will do Experiment #1 – A Mute Point Choose 3 additional experiments – follow the directions and have fun! 1. A mute point – We will all do this on the same day! You can not talk for one entire day. Document your frustrations‚ your “oops” moments‚ reactions from others‚ and if any new revelations came about from not speaking. Make sure you wear your sign! 2. Disregarding the Norm Go to a crowded public space. Intentionally go against the grain in some
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Site Plan | I. Neurons/nerve cells A neuron is a cell specialized to conduct electrochemical impulses called nerve impulses or action potentials. Neuron is the main cellular component of the nervous system‚ a specialized type of cell that integrates electrochemical activity of the other neurons that are connected to it and that propagates that integrated activity to other neurons. They are the basic information processing structures in the CNS.
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Experiment 10 - Flow Characteristics of Valves NAME: CHER SUNG KANG GROUP NUMBER: B21 EXPERIMENT NUMBER: 10 DATE OF EXPERIMENT: 28/11/2011 DATE OF REPORT SUBMISSION: 5/11/2011 MARK/20 (for demonstrator use): Introduction Aim: 1. Describe operation of various types of valves 2. Measure frictional losses due to flows through different valves 3. Identify sources of errors Background & theory: In this experiment‚ the relationship between volumetric flow rate and percentages
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Biology College of Science De La Salle University – Dasmariñas Dasmariñas‚ Cavite Philippines ABSTRACT This experiment was performed to learn the technique of acid-base titration and to compare the efficiency of commercially available antacids by looking at their weight of HCl and weight of antacid values. The analysis of antacid tablets was highlighted in this experiment. The efficiency of antacid tablets was determined and compared when the number of grams of HCl can be neutralized by
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amount of HCl that did not react with the calcium carbonate. Apparatus Mortar and Pestle Standard Lab Balance Hot Plates 200ml beaker Measuring cylinder (10ml‚ 100ml) Pipette Burette Conical Flask Bunsen burner Any reagents used in this experiment Eggshell NaOH 1moldm3 HCl 1moldm3 Phenolphthalein Procedure 1. Each student should obtain one egg and the necessary glassware from the side bench. 2. Break the egg into a beaker. Add water to the egg and stir before pouring down the drain
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choosing the pain of discipline over the ease of distraction. And that’s exactly what delayed gratification is all about” I think that is very true. Delayed gratification is just waiting for something better. If a kid doesn’t pass the marshmallow experiment parents start to wonder what they should do. Mischel states he would remind the parents that there are a large number of cognitive skills that can be used and practiced if kids have a serious self-control problem. At one point Mischel used poker
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STEM CELL RESEARCH AND THERAPYAND ITS IMPACTS ON SOCIETY Abstract There are several types of stem cells being used in stem cell research and therapy today. They are embryonic‚ adult and induced pluripotent stem cells. Each will be discussed further. This topic has stirred much moral‚ ethical and political debate as whether cells from fetuses should be used in this research. This impacts governmental policies on laws and funding. Another issue that must be analyzed is the
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