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Scientific Method

principles and procedures for the systematic pursuit of knowledge involving the recognition of a problem, the formulation and testing of hypotheses and the collection of data through observation and experiment

James MacCarthy

on 27 February 2012

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Transcript of Scientific Method

Scientific Method Scientific method refers to a body of techniques for investigating phenomena, acquiring new knowledge, or correcting and integrating previous knowledge. The scientific method is one way that people can try to find the answer to problems that are bothering them. It's called "scientific", because people like to think of themselves as being very clever, or "scientific" for solving problems. In reality, there's not really anything special about this method, except that it happens to be pretty handy for solving any problem, not just scientific ones. You've got a problem that you want to have solved. The purpose step in the scientific method is just a restatement of what you want accomplished. What do you want to find out? What is your goal? You should write just one sentence for your purpose. You'll see what I mean in the upcoming example. Scientific Method = Clever way to solving problems Question / Problem I want my car to start Hypothesis How do you think you can solve the problem? If Then independent variable dependent variable If I put gas in my car Methods / Materials What do you need to have in order to see if your hypothesis is true? This part of the scientific method is a list of everything you need to do the experiment. Leave nothing out! Procedure What are you going to do during this experiment. You should list everything that you are going to do in this section. Even if it seems obvious, write it down. A good rule: If a six-year-old child can understand what you've written, then you've written it well. If they can't, then you need to go into more detail! Results When you did the experiment, what happened? What did you see, hear, smell, etc? You should give a complete accounting of all data that you take (sometimes this is referred to as the "Data" section). There's an old saying among chemists: "If you didn't write it down, then it didn't happen." Make sure you write everything down! Conclusion What do the results mean? Was your hypothesis correct? Don't make this any longer than it has to be! First, I will call my friend Bill and ask for a ride to the gas station. I will take the five gallon gas can and fill it with five gallons of gasoline at the pump. After paying the gas station owner for the gasoline, I will get a ride back to my car and put the gasoline in the tank. Once the gasoline is in the tank, I will attempt to restart the car. The car started on the first try Thankyou
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