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 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

4. 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

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

7. Begin analyzing the data
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 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

10. COMMUNICATE 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