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Earth Science #213
Cards that deal with Earth Science
Term | Definition |
---|---|
astronomy | study of objects beyond Earth's atmosphere |
meteorology | the study of the atmosphere, which is the air surrounding Earth |
geology | study of materials that make up Earth |
oceanography | study of Earth's oceans including the creatures that inhabit 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 |
hydrosphere | all the water in Earth's oceans, lakes, seas, rivers, and glaciers plus all the water in the atmosphere |
biosphere | all of Earth's organisms and the environment in which they live |
scientific methods | a series of problem-solving procedures that help scientists conduct experiments |
hypothesis | a testable explanation of a situation |
independent variable | factor that is manipulated by the experimenter in an experiment |
dependent variable | factor in an experiment that can be change if the independent variable is changed |
control | standard for comparison in an experiment |
Le Systeme International d'Unites(SI) | a modern version of the metric system based on a decimal system |
scientific notation | a method used by scientists to express a number as a value between 1 and 10 multiplied by a power |
scientific model | an idea, a system, or a mathematical expression that represents the idea of being explained. |
scientific theory | an explanation based on many observations during repeated experiments. |
scientific law | a principle that describes the behavior of a natural phenomenon |