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Scientific Method

Scientific Method. Section 1.2 & 1.3. Warm-Up. A bird watcher sees birds migrating and records their environment. What is this called? Theory Law Observation Hypothesis. Warm-Up 2. Living things change during their lives through_________________. Environment

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Scientific Method

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  1. Scientific Method Section 1.2 & 1.3

  2. Warm-Up A bird watcher sees birds migrating and records their environment. What is this called? • Theory • Law • Observation • Hypothesis

  3. Warm-Up 2 Living things change during their lives through_________________. • Environment • Growth and development • Making responses • Adaptation and organization

  4. Approaches to Solve a Problem • Observation leads to a question (or problem) • Hypothesis • Experiment • Results • Conclusions An experiment must be capable of being repeated and producing substantially similar results.

  5. Problem Statement • Identify a question

  6. Hypothesis • A possible answer to the problem based on knowledge or research

  7. Experiment • Procedures used to support or reject a hypothesis • Independent Variable – item being tested or changed (Controls the dependent var., x axis) • Dependent Variable – changes due to the procedures performed on the independent variable (what ever is being measured, y axis) • Control – comparison point or group

  8. Results • Data obtained as a result of the experiment • Presented in a table or a graph

  9. Conclusion • Using results to support or reject the hypothesis, thus answering the original question

  10. Vocab • Theory – tested repeatedly with same results • Qualitative Data – observations, research • Quantitative Data – Numbers, Charts & Tables

  11. Practice Problem • 1. Write down a problem from this information. • 2. State an appropriate hypothesis for this investigation. • 3. Identify the independent variable. • 4. Identify the dependent variable. • 5. What is the control in this investigation.

  12. Lab Today—the fizz experiment • Does Water temperature affect how fast a tablet dissolves? • Materials: fizzy tablets, stopwatch, cup of hot water, cup of cold water • Do 4 trials at each temperature (simply hot or cold). Record on Worksheet. • Complete Worksheet and Lab Report (due Tues.)

  13. Lab Write-Up • See Handout • Due Tuesday

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