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sCiEnCe

sCiEnCe. The goal of science is to better understand the world around us by: questioning performing experiments check the results of other experiments testing the predictions of current theories. Scientists, everyday people, and

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sCiEnCe

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  1. sCiEnCe • The goal of science is to better understand the world around us by: • questioning • performing experiments • check the results of other experiments • testing the predictions of current theories. • Scientists, everyday people, and even KHS students use THE SCIENTIFIC METHOD to help solve problems

  2. SCIENTIFIC METHOD“PHEOCC” 6 easy steps on to find answers in life and solve problems using the scientific method !

  3. HEOCC • State the problem • Are there any previous events or observations that led you to this problem? • Written as a question • Gather information on the problem - research PROBLEM

  4. P EOCC Develop a proposed solution to the problem - Be specific - Use an if….then….because Incorrect: “I think the temperature will change.” Correct: “If I do a sundance then temperature will rise by 10 degrees Celsius in 60 seconds because..” HYPOTHESIS

  5. Hypothesis: 3 Types of Variables • Independent Variable • Manipulated (changed) • What you control in the experiment • X axis • Dependent Variable • Response to what you changed (I.V.) • Data collected • Y axis • Constant variables- remain the same throughout the entire experiment • Used as a comparison • Experiment MUST have these

  6. PH OCC • Collect and record data • Step by step process EXPERIMENTS

  7. PHE CC • What happened? • Begin analyzing the data • Make inferences • Charts and Graphs OBSERVATIONS

  8. EXAMPLE OF DATA ANALYZED • Dependent variable? Why?Independent variable? Why? • What could be a constant here? • Observations? Inferences?

  9. PHEO C HMMMm….. • What did you find out about your problem? • More tests? • Discover a new problem? • Was your hypothesis correct? Why or why not? • Discuss data or graphs CONCLUSION

  10. PHEOC • Publish results • Display information • Tell someone about your findings! • This is how scientists develop new theories and laws COMMUNICATE

  11. Scientific Laws and Theories • Theories: explain why something happens • Supported by large amounts of evidence from investigations • Example: • Laws: explain how something works. • Have never been proven wrong • Predicts events • Example: Laws of motion

  12. Scientific Laws and Theories • Experimental results support laws and theories. • Scientific theories are always being questioned and examined. To be valid, a theory/law must: • explain observations • be repeatable • be predictable • falsifiable

  13. END RESULT OF USING THE SCIENTIFIC METHOD • You may develop a new theory or law and become famous! (Darwin, Newton, Bohr) • You may develop new questions and inquiries • You may simply solve a daily problem • Hopefully something was learned

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