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28 Cards in this Set
- Front
- Back
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astronomy
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study of the universe beyond the earth.
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atmosphere
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thick blanket of gases surrounding the earth
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backround radiation
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low levels of energy evenly distributed throughtout 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 extremely small volume that suddenly starting expanding in all directions
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biodegradable
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able to be broken down into component parts by microorganisms.
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biosphere
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ecosystem encompassing all the life on earth and the physical enviroment that supports it.
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Doppler Effect
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apparent shift in he wavelength of energy, such as sound wave or light wave, emitted by a source moving away from or toward an observer.
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Earth Science
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study of the earth and the universe around it.
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Ecology
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study of the complex relationships between living things and thier enviroment
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Ecosystem
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communtiy of organisms and the enviroment they inhabit
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elements
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substance that cannot be broken down into a simpler form by ordinary chemical means
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experimentation
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process by which a scientific procedure is carried out according to certain giudelines.
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geology
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study of the origin, history, and structure of the solid earth and the processes rhat shape it.
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geosphere
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the solid earth.
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hydrosphere
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all the earth's water
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hypothesis
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possible explanation of a problem that is based on facts
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measurement
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comparison of a property of an object ot phenomenon with a standard unit.
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meterolgy
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study of the earths atmosphere
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observation
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act of using the senses to gather information
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oceanography
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study of the earth's oceans
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pollution
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contamination of the enviroment with waste products or impurties
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scientifc law
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rule that correctly describes a natural phenomenoun
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scientific methods
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organized, logical approuchesto scietific researches
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spectroscope
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instrument that splits white light into a cand of colors
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spectrum
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band of the various colors of light
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theory
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hypothesis or set of hypthesis supported by the results of experimation and observation
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variable
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factor in an experment that can be changed
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wavelength
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distance between wave crests
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