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esch1

terms and definitions

TermDefinition
astronomy study of objects beyond earths atmosphere
meteorology the study of the atmosphere, which is the air surrounding earth
geology study of materials that make up earth and the processes that form and change these materials, and the history of the planet and its life forms since its origin
oceanography study of earths oceans including the creatures that in habit its waters, its physical and chemical properties, and the effects of human activities
environmental science study of the interactions of humans with environment
geosphere the part of earth from its surface to its center
atmosphere blanket of gases surrounding earth that contains about 78% nitrogen, 21% oxygen and 1% other gases such as argon, carbon dioxide, and water vapor
hydrosphere all the water in earths oceans, lakes, seas, rivers, and glaciers plus all the water in teh atmosphere
biosphere all of earth's organisms and the environments in which they live
scientific methods a series of problem solving procedures that help scientists conduct experiments
hypothesis a testable explanation of an situation
independent variable factor that is manipulated by the experimenter in an experiment
dependent variable factor in an experiment that can change if the independent variable is changed
control standard for comparison in an experiment
le systeme international d'unites scientific notation replacement for the metric system; based on a decimal system using the number 10 as the base unit
scientific model an idea, a system, or a mathematical expression that represents the idea being explained
scientific theory an explanation based on many observations during repeated experiments
scientific law a principle that describes the behavior of natural phenomenon
Created by: jameswhitledge1
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