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27 Cards in this Set
- Front
- Back
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astronomy
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the 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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element
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substance that has a characteristic set of physical and chemical
properties |
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experimentation
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process by which 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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meteorology
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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 oceans
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pollution
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contamination of the environment with waste 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 hypotheses 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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