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Think Like a Scientist

Think Like a Scientist. The Scientific Method. 1. OBSERVATION. When you use one or more of your 5 senses to gather information Observations are called DATA Collect Data in a DATA TABLE. What are some examples?. Hearing a Cow Moo Seeing a Dog bury a bone Smelling Choc. Chip cookies.

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Think Like a Scientist

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  1. Think Like a Scientist The Scientific Method

  2. 1. OBSERVATION • When you use one or more of your 5 senses to gather information • Observations are called DATA • Collect Data in a DATA TABLE

  3. What are some examples? • Hearing a Cow Moo • Seeing a Dog bury a bone • Smelling Choc. Chip cookies

  4. Quantitative vs. Qualitative • Qualitative Observations: Observations that use Descriptions Ex: How an animal reacts to an event • Quantitative Observations: Observations that use Numbers Ex: Measurements or counting

  5. 2. INFERENCE • When you explain an observation • For example: When you hear a dog barking…. you may infer that someone is at the door When you see a student yawn… you may infer that the student is tired

  6. What is a possible Inference?

  7. What do you OBSERVE?What can you INFER?

  8. 3. PREDICTION • Making an inference about a future event based on past experience or evidence • Ex: If Mrs. Boman eats 12 Chocolate Chip Cookies… I predict that she is going to feel sick

  9. Who do you PREDICT will win? Why?

  10. Now, Your Thinking like a Scientist! LETS SUMMARIZE! In pairs, person A tells person B what we just learned for 45 seconds…Next, person B fills in the gaps or repeats the main points!

  11. THE SCIENTIFIC METHOD • The process scientists use to gather information and answer questions. • Scientific inquiry = being curious and asking questions by observing the world around them.

  12. 1. Posing a Question Asking WHAT? or HOW? to something you observed Can you think of an example?

  13. 2. Conduct Research Gather information that will help you answer your question. Library, Internet, Interviews, Experiments

  14. 3. State your HYPOTHESIS A prediction for a question that can be formally tested. Based on observations, prior knowledge, and research a.k.a: an educated guess If…then…because… For example?

  15. 4. Design an Experiment A step by step procedure designed to test your Hypothesis… Testing whether it is true or false.

  16. Independent Variable: The factor that is intentionally changed in an experiment…it is what you are testing! • Control: All of the factors that remain the same! • Controlled Experiment: An experiment where all factors except independent variable are kept the same.

  17. For example: • Question: Which freezes faster…fresh water or salt water? • Hypothesis: IF I add salt to fresh water, THEN the salt water will take longer to freeze • Experiment: Independent Variable: the salt that is added to the water Control: the amount of water, temperature of water Controlled Experiment: All factors, or potential variables are kept the same, such as temperature and amount of water

  18. 5. Collect Data The observations and measurements you make in an experiment are called Data. Organize data into data table.

  19. 6. Analyze Data Did your experiment support your hypothesis? Does additional research need to be conducted?

  20. 7. Conclusion State whether your data supports or reject your Hypothesis. A Summary of your Experiment

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