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PCS Earth Science
Chapter 1 Vocabulary - The Nature of Science
Term | Definition |
---|---|
hypothesis | an educated guess |
astronomy | the study of the moon, stars, and other objects in space |
meteorology | science dealing with the atmosphere and weather |
geology | science dealing with the earth's history as recorded in rocks; study of Earth |
oceanography | study of Earth's oceans |
asthenosphere | the soft layer of the mantle on which the lithosphere floats |
hydrosphere | all the water at and near the surface of the earth; 97% of which is in oceans |
atmosphere | a mixture of gases that surrounds a planet or moon |
biosphere | consists of all life on Earth and all parts of the Earth in which life exists, including land, water, and the atmosphere |
lithosphere | a rigid layer made up of the uppermost part of the mantle and the crust |
scientific methods | problem solving procedures scientists use to solve scientific mysteries |
independent variable | the variable that you can change |
dependent variable | are variables being measured |
scientific theory | explanation or model backed up by results of many tests and experiments |
scientific law | is a rule that describes the behavior of something in nature |
control | is a standard to which your results can be compared |
SI units | international system of units, the metric system of measurements which is used by all scientists |