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Scientific Method

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a method for studying the natural world by gaining knowledge through observations and investigations. Scientists gather information through observations and design investigations based on inferences. Science
objective; based on the 5 senses, not opinion. Ex. The ground is wet. Observation:
subjective; a guess about an observation. Ex. It rained. Someone spilled something. Inference
description of how things happen in nature. Ex. Newton’s Laws of Motion Law
an explanation, based on evidence, of why things happen. Ex. Evolutionary Theory Theory
a testable prediction that attempts to answer a question. Usually predicts a cause and effect relationship between variables. Hypothesis
what is being purposefully changed; what is being tested; the “cause” Independent variable
what is being measured; the data collected as a response; the “effect” Dependent variable
factors that do not change in the experiment; conditions kept the same for all groups. Examples of each for the Gatorade experiment? Constants
the group that is being tested and purposefully changed. Experimental Group(s)
numerical data Quantitative
descriptive data Qualitative
Ask a question. Scientific Method: Step One
Research and gather background information Scientific Method: Step Two
Form a hypothesis. Scientific Method: Step Three
Test the hypothesis. Scientific Method: Step Four
Analyze the data. Scientific Method: Step Five
Draw conclusions. Scientific Method: Step Six
Outline a sample experiment you could set up to investigate the effect of drinking Starbucks on student test scores. List all components in the 2nd objective above. Independent Variable- coffee Dependent Variable- Students Test Scores Hypothesis- The test scores will be better with Starbucks Control Group- Test Scores without Starbucks Experimental Group- Test scores with Starbucks Constants- Type of coffee, stu
List the type of graph that would be most appropriate in the following scenarios: Percentage of students in each grade in the school. Circle Pie Chart
List the type of graph that would be most appropriate in the following scenarios: The change in mass of firewood before heating and after. Bar Graph
List the type of graph that would be most appropriate in the following scenarios: The effect of the amount of conditioner used on hair length. Line Graph
Created by: aherald
 

 



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