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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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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 extremely small volume that suddenly, billions of years ago, began 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 environment that supports it
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Doppler effect
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apparent shift in the wavelength of energy, such as a sound wave or a 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 their environment
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ecosystem
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community of organisms and the environment 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 wich a scientific procedure is carried out according to certain guidelines
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geology
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study of the origin, history, and structure of the solid earth and the processes that 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 or phenomenon with a standard unit
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meterology
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study of the earth's 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 ocean
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pollution
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contamination of the environment with wasted products or impurities
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scientific law
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rule that correctly describes a natural phenomenon
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scientific methods
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organized, logical approaches to scientific research
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spectroscope
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instrument that splits white light into a band 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 hypothesis supported by the results of experimentation and observation
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variable
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factor in an experiment that can be changed
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wavelength
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distance between wave crests
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