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The scientific method Standard 9. What is the Scientific Method?  A process used to investigate a question  There are many different versions of the.

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Presentation on theme: "The scientific method Standard 9. What is the Scientific Method?  A process used to investigate a question  There are many different versions of the."— Presentation transcript:

1 The scientific method Standard 9

2 What is the Scientific Method?  A process used to investigate a question  There are many different versions of the scientific method. This is our version.  There are seven steps!

3 7 steps  Question  Research  Hypothesis  Materials  Procedure  Results  Conclusion

4 Question- Step 1  Looking for a piece of information that you don’t know.  It is best expressed as an “open-ended question”, which is a question answered with a sentence, not just a yes or no answer  Should be simple, direct, and measurable  Ex. How does the tread of the shoe affect the amount of friction?  What is wrong with this example - Is a flip flop better than a sandal ?

5 Question Practice  Write two questions you can test on plant growth  ________________________________ ________________________________

6 Hypothesis- Step 3  A hypothesis is an educated guess developed using background knowledge that can be tested  Based on the information found in research  Easy format: “If …..then, because  All hypothesis have support.

7 Hypothesis Practice  Practice writing hypotheses for your two plant growth questions.  Ex.1_____________________________ ________________________________  Ex.2_____________________________ ________________________________

8 Research- Step 2  Looking for the information that would help to answer the question  Could be books, journals, magazines, internet, labels, or an expert.  Practice- If you are doing an experiment on plant growth, what do you need to know about plants? Where could you get the information?

9 Experiment (broken into 3 parts) Materials- Step 4  Provides a list of all things used in the experiment  Should be specific, including measurements  Practice- List the materials you would need to do an experiment on how light affects plant growth.

10 Procedure- Step 5  Step-by-step instructions on how to do the experiment  Another person should be able to do your experiment based on your steps.  Should produce measurable results

11 Procedure Practice  Explain what needs to be changed to make the steps clearer.  Put some soil in each cup.  Put the plants in different places so each plant gets different amounts of light.  Water the plants every two days.

12 Results- Step 6  The data collected in the experiment.  Include a data table, this is where you record your results.  You might need to include a chart or a graph  Simple paragraph to state what happened

13 Results Practice  What information would you graph if you did the experiment about how the amount of light affects plant growth?

14 Conclusion- Step 7  Answers the question  States if the hypothesis was correct or incorrect  Discusses experimental error Could you be wrong? Could the experiment have given the wrong results?


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