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Scientific Investigations

Scientific Investigations. What are the parts of a scientific investigation? What is a fair test and a variable?. Fair Test. Where only one factor (variable) is changed during the test to make sure that factor affects the test.

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Scientific Investigations

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  1. Scientific Investigations What are the parts of a scientific investigation? What is a fair test and a variable?

  2. Fair Test Where only one factor (variable) is changed during the test to make sure that factor affects the test. Ex: Jill wants to find out “What is the effect of the number of coils on an electromagnet?” What is the variable? Is this a fair test?

  3. Variable • Manipulated – the one factor that is changed in the test • Responding – because the manipulated variable is changed, how does it affect the test? Ex: Think about Jill’s experiment? What is her manipulated variable? Because that changes, what is going to be the responding variable?

  4. Scientific Procedure • Identify a testable question that can be investigated (one variable) • Do some research on the topic • State a prediction about your question based off the information from your research Ex: What should Jill do after she knows she wants to find out how the coils affect the electromagnet?

  5. Scientific Procedure • Design an experiment • List the materials you need • List the steps you will need to take to investigate Ex: What will Jill need and what will she need to do?

  6. Scientific Procedure • Record or organize data (observations) in charts and graphs. • Study the data in the graphs or charts.

  7. Graphing This is what Jill found out, make a graph on the back of your paper. Looking at the data, should you use a bar graph or line graph? What type of data is this?

  8. Scientific Procedure • Explain the results. What happened? • Compare results to prediction. Was your prediction correct? Is it okay if it wasn’t correct?

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