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Published byMagnus Nichols Modified over 9 years ago
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Intro to Science Scientific Method
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1. Observation Observe a: –Problem –Question Question
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2. Hypothesis Have an educated guess of what the result may be The hypothesis must be testable Carbonated Water Potassium Benzoate Caramel Color Natural Flavors Aspartame Citric Acid Phosphoric Acid Caffeine
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3. Experiment Experiment Tests using –Control – group used for comparison, does not receive variable –Variables – the factors that change independentdependent
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A snickers after every meal will make you fat. I will have 30 people in my experiment. They all get the same food and the same amount of exercise. Group A gets a snickers candy bar after each meal. Group B does not get the candy. –What’s my control group? –What’s the independent variable? –What’s the dependent variable?
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4. Conclusion Did the experiment support the hypothesis? Decide using your data If everyone in my experiment gets fat, what can I conclude? If only group A gets fat, what can I conclude? If only group B gets fat, what can I conclude?
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4. Conclusion Some hypotheses may become: –A theory: An explanation of why and how a specific natural phenomenon occurs. Can never be proven true; a theory is just our best explanation of events. Example: the theory of evolution, the big band theory Some experiments may lead to the formation of –A Law: summarize patterns or relationships that occur; it is a true statement that can consistently be applied. Example: E=mc 2 is the law of conservation of matter and energy
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5. Communicate How can you get the word to the street? –Models –And…………… –You tell me, how do you communicate?
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