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28 Cards in this Set
- Front
- Back
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astronomy
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The study of the univers that is beyond earth.
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atmosphere
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A thick blanket of gases that surround the earth.
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background radiation
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Low levels of energy that are evenly distributed throught the universe.
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big bang theory
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The theory that all matter and energy in the universe was compressed into an extremely small volume that suddenly began expanding in all directions, billions of years ago.
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biodegradable
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Something that is able to be broken down by microorganisma into component parts.
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biosphere
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An ecosystem that encompasses all of the like on the earth and the physical environment that supports it.
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doppler effect
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The apparent shift in the wavelength of energy, like light and sound waves, emitted by a source that is moving away from or towards an observer.
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earth science
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The study of the earth and the universe around it.
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ecology
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The study of the complex relationships between living things and their environment.
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ecosystem
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A community of organisms and the environment they inhabit.
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elements
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A substence that has a charecteristic set of physical and chemical properties.
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expirementation
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A process by which s scientific procedure is carried out according to certain guidelines.
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geology
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The study of the origin, hustory, and structure of the solid earth and the prosseces that shat 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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A possible explanation of a problem that is based on facts.
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measurement
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A comparison of a property of an object or phenomenom with standard units.
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meteorology
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The study of the earth's atmosphere.
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observation
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The act of using the senses to gather information.
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oceanography
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The study of the earth's oceans.
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pollution
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The contamination of the environment with wase products or impurities.
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scientific law
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A rule that corersctly describles a natural phenomenon
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scientific methods
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The organized, abd logical approches to scientific research.
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spectroscope
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An instrament that splits white light into a bad of colors.
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spectrum
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A band of various colors of light.
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theory
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A hypothesis or set of hypotheses supported by the results of expirementation and observations.
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variable
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A factor in an experement that can be changed.
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wavelength
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The distance between wave crests.
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