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27 Cards in this Set
- Front
- Back
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earth science
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the study of the earth and the universe around it
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geology
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study of the orgin, history, and structure of the solid earth and the process that shape it
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oceanography
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study of earth's oceans
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meteorology
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study of the earth's atmosphere
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astronomy
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study of the universe beyond earth
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geosphere
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solid earth
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atmosphere
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gases surronding the earth
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hydrosphere
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the earths water
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ecosystem
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a community of organisms and the enviorment they inhabit
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biosphere
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largest ecosystem
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pollution
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contamination of the enviorment with waste or impurities
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biodegradable
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waste products that can be broken down by microorganisms into harmless substances that can be used by other organisms
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scientific methods
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logical approaches to scientific research
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observation
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usings your senses to gather information....scientific method starts with this
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measurment
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the comparison of some aspects of an object or phenomenon with a standard unit.....important mean of observation
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hypothesis
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a possible explanation or solution to the problem based on facts.......after you gather info and state the problem
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experiment
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how to test a hypthesis.....scientific procedure carried out according to certain guidelines
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variable
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a factor in an experiment that can be changed.....prove or disprove hypothesis
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ecology
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the study of the complex relationships between livinf things and their enviorment
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theory
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a hypothesis or a set of hypotheses that is supported by the result of experimentation and observation
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scientific law
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a rule that correctly describes a natural phenomenon
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spectrum
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band of the various colors of light
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wavelength
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the distance fromt he crest of one wave to the crest of the next
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doppler effect
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apparent shift in the wavelengths of energy emitted by an energy source moving away from or toward an observer
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spectroscope
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instrument that splits white light into band of colors
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background radiation
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low levels of energy evenly distributed throughout the universe
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big bang theory
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theory that all matter and energy in the universe was compressed into an extremly small volume that suddenly billions of years ago, began expanding in all directions
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