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

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

HEOCC PROBLEM 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

HYPOTHESIS 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

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

Collect and record data Step by step process PH OCC EXPERIMENTS

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

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

PHEO C CONCLUSION 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 PHEO C HMMMm….. CONCLUSION

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

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

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

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