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Study the scientific method

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Term
Definition
Scientific Method   a series of steps used to answer a question or solve a problem  
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Hypothesis   a possible explanation or answer to a question, and it uses the word "affect"  
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Prediction   an IF-THEN statement that states in advanced the results of the experiment  
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Variable   what is being studied  
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Control group   when the variable in not changed; used for comparison  
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Experimental group   has one variable that changed  
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Independent variable   what changed in the experiment  
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Dependent variable   what changes due to the independent variable  
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Controlled experiment   tests one variable at a time; containing a control group, experimental group, and a variable  
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Theory   Current explanation of why or how something happened  
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Law   explains what happens in the experiment that over time is proven to be true  
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Label the 6 steps of the scientific method   State a problem, form a hypothesis and prediction, design the experiment, perform experiment and analyze results, draw conclusion, and communication  
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What do scientist do in step one- state a problem?   Gather information by making observations and asking questions  
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How do scientists make observations?   Use one or more of your 5 senses to identify objects or events  
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What do you do when designing the experiment?   Test the hypothesis  
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What groups and variables are in the experiment?   controlled group, experimental group, independent variable, and dependent variable  
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What do scientists do during step 4- perform experiment and analyze results?   Collect data, look for patterns in data of the experiment, and do the experiment many times with many subjects to make sure analyzing and conclusions are correct.  
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What do scientists do during step 5- draw conclusion?   State results, check to see if the results support the hypothesis, and they explain why or why not  
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What do scientists do during step 6- communication?   Use lab reports, articles, and presentations to explain research and results, and they may repeat their experiment again with other people's ideas and suggestions.  
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Why is it important to do an experiment more than once? Should a scientist have a large or small number of subjects in an experiment? Why?   A large number of subject in an experiment helps make sure analyzing and conclusions are correct. It increases the reliability of the research.  
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Created by: spuent
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