the scientific method. the scientific method is used by scientists to support or disprove a...
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The Scientific Method The Scientific Method involves 6 steps: Asking A Question Doing Research Forming a Hypothesis Setting Up An Experiment Analyzing the Results Drawing A ConclusionTRANSCRIPT
The Scientific Method
The Scientific Method
The Scientific Method is used by scientists to support or disprove a hypothesis. It involves a series of steps that are used to investigate a natural occurrence. This is the method on which all research projects should be based.
The Scientific MethodThe Scientific Method involves 6 steps:
Asking A QuestionDoing ResearchForming a HypothesisSetting Up An Experiment Analyzing the ResultsDrawing A Conclusion
The Scientific Method
It all begins with an observation!You observe something in the material world using your senses.
AH—Look at this!
The Scientific Method
Question/Problem- You ask a question about what you observed. This becomes the problem you try to find ananswer to.
The Scientific Method
Research- You gather data or information about your question or problem. For Example: books
magazines reports experts your past experiences
The Scientific Method
Hypothesis- You predict what you think the answer to yourquestion might be. This is your“educated guess”.
Remember: It must be a testable hypothesis!
The Scientific Method
Experiment - You figure out a way to test whether your hypothesis is correct or not.Remember, the outcome must be measurable or quantifiable.
The Scientific Method
Results- This is your data. Record and analyze your data using charts & graphs. Repeat the experiment to confirm your results byretesting. The more trials you have themore reliable your results are.
The Scientific Method
Drawing Conclusions- State whether your hypothesis was confirmed or not and try to explain your results.
results
Following the Scientific Method.
A fish farm operator notices that baby fish are not surviving to adulthood. (Problem) She goes to the library and looks up what fish need to survive. (Research) She thinks that the fish are not surviving because there is not enough oxygen in the water. (Hypothesis) She tests two groups of fish, one of which receives more oxygen than the other. (Experiment) The higher-oxygen group has many more fish survive. (Results) She concluded that lack of oxygen was the cause of fish deaths. (Conclusion)
The Scientific Method
Test your knowledge byreading different scientific scenarios and seeing if you can identify the steps of the scientific method.
Scenario #1: Jane has been growing her plants under white light and notices they are not growing well.
After a month Jane measures the plants and finds that the plant grown under the red light is 5 cm taller. ______________________
She looks up different color lights to see if there might be another option for light color. ___________________
Jane notices her plants are not growing well under white light. _________________________
Jane concludes that plants grow taller in red light versus white light. ___________________________
Jane sets up two groups. One is exposed to white light and the other is exposed to red light. ________________________
Jane thinks her plants will grow taller in red light. _________________________
Problem Research
Hypothesis Experiment
Results Conclusion
hypothesis
results
research
problem
conclusion
experiment
Scenario #2: SpongeBob notices his regular detergent isn’t cleaning his pants as well as they use to.
SpongeBob washes one pair of pants in plain water and another pair in water with the Clean-O detergent. He repeats this process three times. ________________________
The pants washed in the Clean-O did not appear to be any cleaner than the pants washed in plain water. ______________________
He looks up the latest laundry detergents used for fighting tough stains.____________________
SpongeBob’s notices his favorite pants are not as clean as they used to be. _________________________
He thinks Clean-O detergent will remove stains from his pants. _________________________ SpongeBob reports to Sandy that the Clean-O detergent is not
effective in removing stains. ______________________
Problem Research Hypothesis
Experiment Results Conclusions
experiment
results
research
problem
hypothesis
conclusion