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Mastering the Scientific Method: Problem Solving and Experimentation

yehuda avatar
yehuda
13 diapositives · 239 Views · Jul 18, 2014

Explore the scientific process of problem-solving through hypothesis formation, experimentation, data analysis, and result communication. Learn key elements such as variables, controls, and theories for successful lab experiments.

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  1. The Scientific Method Unit 1. Topic 2 Miss Hanna

  2. Science- • Science: a process used to solve problems or answer questions about our environment; used to make decisions. • Scientific Method: an approach taken to try to solve a problem. • –Many versions are available from simple to very complex.

  3. Steps of the Scientific Method- • 1. Identify the Problem– –What do you want to know or explain? –Use your observations to write a question that addresses the problem, or topic, that you want to examine.

  4. Steps of the Scientific Method- • 2. Form a Hypothesis– • –Hypothesis–your educated guess about the results of your experiment. • –Predict the answer to your question using an If…then… statement. EX. If I increase the amount of light that plant A receives it will grow faster then plant B which receives less light.

  5. Steps of the Scientific Method- • 3. Create an Experiment– • How will you test your hypothesis? • Develop a procedure that follows proper lab safety procedures.

  6. Steps of the Scientific Method- • 4. Perform the Experiment– • Follow all the steps of the procedure exactly. • Record your data and make observations.

  7. Steps of the Scientific Method- • 5. Analyze the Data– • Create data tables, charts, and graphs. • Did the experiment work the way you expected it to? • Is there a flaw? If there is then go back and rewrite your procedures to address the flaw. Then perform the experiment again and reanalyze your data.

  8. Steps of the Scientific Method- • 6. Communicate your Results– • Write a conclusion which should include: • Summarize the experiment • Explain if and why your hypothesis was correct or incorrect. • Explain any problems you experienced and how they impacted the results. • Explain how you would improve or change this experiment.

  9. Steps of the Scientific Method- **Remember** You can have a successful experiment without proving your hypothesis!

  10. Things that make a “GOOD” Lab/Experiment: • Experiment–a procedure that tests a hypothesis

  11. Things that make a “GOOD” Lab/Experiment: • Independent Variable–the part of an experiment that changed because it affects the outcome of the experiment. • Ex. What you change to test your hypothesis. • Dependent Variable–the part of an experiment that results from changes in the independent variable • Ex. What you measure at the end of a lab

  12. Things that make a “GOOD” Lab/Experiment: • Control–the part of an experiment in which the independent variable is not applied; used to compare the results of your experiment. • Constant–the parts of an experiment that remain the same.

  13. Things that make a “GOOD” Lab/Experiment: • Theory–an explanation of a natural phenomenon that is supported by a large body of scientific evidence obtained through many investigations and experiments. • Principles–certain facts of nature that are known to be true • Ex. Gravity