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13 Cards in this Set
- Front
- Back
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Science
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an organized way of using evidence to learn about the natural world
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What is the goal of science?
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to investigate and understand nature, to explain events in nature, and to use those explanations to make useful predictions
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Observation
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using one or more senses to gather information
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Inference
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a logical interpretation based on prior knowledge and experience
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What is a controlled experiment?
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a controlled experiment is an experiment in which only one variable is changed at a time, independently
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Scientific Method
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1) Identify and state a problem
2)Form and create a hypothesis based on limited evidence 3) set up an experiment 4) record and analyze your results 5) conclusion 6) disseminate |
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Controlled Variable
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a variable that remains unaltered throughout the entire experiment
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independent variable:
why important? |
a variable that is deliberately altered throughout the experiment
important to change only one independent variable at a time because that way you can figure out which variable is causing which results |
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dependent variable
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variable that changes in correspondance to the independent variabel (manipulated)
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qualitative date
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data that cannot be easily measured or counted
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quantitative data
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data that can be easily measured or counteed
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theory
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a well tested explanation that unifies a broad range of observations
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characteristics of living things
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made up of cells
reproduce based on universal genetic code grow and develop respond to the environment must maintain a stable internal environment (homeostasis) obtain materials and energy and utilize it evolve as a group |
