1. Practicing Scientific Method

2. Steps of the Scientific Method 3. 1.Title2.Background information3.Hypothesis4.Materials5.Controls & Variables6.Procedure7.Raw Data8.Data Analysis9.ConclusionComponents of Scientific Experiment 4. Writing a Background:oWhat are you studying? Describe what you are studying (process,molecule, etc)oWhy are you studying it? Why is the topic importantoWhat do you already know/have you observed aboutthe topic? Complete research to explain topic and useoutside sources to present known informationWriting a Background 5. Variables are factors that change during anexperiment.Independent Variable (IV): variable that ispurposely changed during experimentDependent Variable (DV): variable thatchanges in response to purposeful change (IV)Variables 6. Control: Variable that all others will be comparedtooControl group gives you something to comparethe experimental group toProcedure: Numbered step by step instructions ofwhat you will doConstant: Experimental aspect that is kept thesame for all trialsoThere should be numerous constants perexperiment (shoot for at least five) 7. Title of Experiment:oThe Effect of (Insert Independent Variable Here)on (Insert Dependent Variables Here).Hypothesis of Experiment:oIf (planned change in independent variable), then(predicted change in dependent variable)Or another way to look at itoIf (I do this) , then (this) will happen.Test your hypothesis by conducting the experiment 8. Example: Testinsulation ofdifferent materialson watertemperature in aglass jar. 9. Title: The Effect of Type of Insulation Wrap onTemperature of Water in a JarHypothesis: If three canning jars of water in the sun arewrapped with different types of insulation (cotton, wool &nylon), then the temperature of the water in the woolinsulated jar will increase the least compared to the cottonand nylon.Independent Variable: Type of insulationDependent Variable: Change in temperature of water injar 10. Collect DataTable 1. Effect of Insulation Type on Water Temperature (Celsius)Control (Noinsulation)IV 1 (Cotton) IV 2(Wool)IV 3(Nylon)Results ofTrials (May bemore than 1)Results ofTrials (May bemore than 1)Results ofTrials (May bemore than 1)Results ofTrials (May bemore than 1) 11. Analyze your data:a.Qualitative (Theyre hot!), Quantitative(Theyre a 10!)b.Complete calculations to summarize data (ifnecessary):i.Average, Median, Mode, Percent Changec.Create a graph/chart most appropriate toshow resultsData & Results 12. Conclusion:a.Restate the hypothesis and describe if it was confirmed or contradicted.b.State the answer to your questionc.Describe what the graph indicatesd.Explain your results using datae.Describe any limitations or observed errors that influenced your results (donot state human error)f.Describe modifications to improve the experiment and future topics of studyg.Connect your findings to the real world or other studies.Data & Results 13. A group of scientists want to measure the effect of addingdifferent types of nutrients to the same plant species. Theyplan to add 3 different nutrients to the same species andmeasure the effect on the plants growth.1.What is the independent variable?2.What is the dependent variable?3.What would be an appropriate control?4.What are some of the constants?5.Describe what the graph would probably look like.Practice Science Method