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18 Cards in this Set
- Front
- Back
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What is science?
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a way of learning…a body of knowledge about the natural world…collection of insights about nature (theories)
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What is bias?
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a partiality that prevents objective consideration
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Define theory.
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a general set of principles, supported by evidence, that explains some aspect of nature. Withstood vigorous testing by scientists. Unified insights.
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What is belief?
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something held as the truth without need of proof or testing
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What is fact?
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information that has objectively verified
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Define control.
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the unchanged version of an experiment with no variables
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Life must...
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assimilate and use energy, respond to its environment, maintain homeostasis, inherit info based on encoded DNA, reproduce, have more than 1 cell, have evolved from other living things, and be highly organized
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What is biology?
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the study/science of life, characteristics/behaviors of organisms, how species/individuals come into existence, interactions with eachother and environment
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What is evolution?
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the gradual modification of living things over time. Explains compexity/diversity.
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In what way is science different from a belief system?
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Mainly through provisional assent, meaning nothing is ever finally proven--just used until new findings arise. Everything is subject to modification--no higher laws or authority figures.
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Describe the steps of the scientific method.
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observation, question, hypothesis, experiment, conclusion
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How did Louis Pasteur use the scientific method?
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He tested his hypothesis through the meat flask experiment and concluded that his hypothesis of spontaneous generation should be rejected due to his findings.
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Why would a scientist not always follow the scientific method in a strict order?
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Every assertion is subject to challenge and revision, every experiment is unique
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What is a controlled experiment?
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2 virtually identical experiments are conducted, but the factor being tested is varied in only one of them.
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Why is it important to keep all variable but one constant in a scientific experiment?
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Change 1 variable at a time to verify that the variable is causing whatever changes seen (solidify conclusion)---"further isolate any casual phenomena"
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Why is data more reliable the more subjects you have?
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More of a sample = better representation of the population at hand. Solidifies validity of results found. Not anecdotal (personal story). lung cancer ex!!
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True or false: A fact is both reproduceable and universal.
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TRUE
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True or false: science is about finding facts.
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False: science is about theory building. Explanatory aspect of science.
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