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18 Cards in this Set
- Front
- Back
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science
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process of looking at and studying things in the world in order to gain knowledge.
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scientific theory
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a possible explanation for repeatedly observed patterns in nature supported by observations and results from many investigations.
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scientific law
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a rule that describes a pattern in nature, but does not try to explain why something happens.
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system
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collections of structure, cycles, and processes that relate to and interact with each other.
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life science
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study of living systemsand how they interact.
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Earth science
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study of Earth systems and systems in space, including weather and climate systems, and the study of nonliving things such as rocks, oceans, and planets.
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physical science
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study of matter, which is anything that takes up space and has mass, and the study of energy, which is the ability to cause change.
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technology
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use of scientific discoveries for practical purposes, making people’s lives easier and better.
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hypothesis
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reasonable guess that can be tested and is based on what is known and what is observed.
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infer
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to draw conclusions based on observations.
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controlled experiment
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involves changing one factor and observing its effect on one thing while keeping all other things connstant.
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varible
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factor that can be changed in a experiment.
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independent variable
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variable that is changed in an experiment
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dependent variable
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variable that changes as a result of a change in the independent variable.
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constant
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variable that is not changed in an experiment.
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model
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any representation of an object or an event that is used as a tool for understanding the natural world; can communicate observations and ideas, test predictions, and save time, money, and lives.
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critical thinking
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involves using knowledge and thinkingskills to evalute evidence and explanations.
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data
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information gathered during an investigation; recorded in the form of descriptions, table, graphs, or drawings.
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