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34 Cards in this Set
- Front
- Back
Earth Science
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Is the study of the earth and of the universe around it.
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Career Focus
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A special feature that appears in each unit of this book, offers detailed info about careers in Earth Science.
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Geology
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Is a broad field that includes many areas of specialization.
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Oceanography
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The study of the earth's ocean.
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Meteorology
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The study of the earth's atmosphere.
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Astronomy
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The study of the universe beyond the earth.
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Ecology
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Is the study of the complex relationships between living things and their environment.
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Geosphere
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The solid earth.
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Hydrosphere
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Earth's water
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Atmosphere
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The gases surrounding the earth.
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Ecosystem
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A community of organisms and the environment they inhabit.
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The terms ecology and ecosystem
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Come from the Greek word oikos meaning house.
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Biosphere
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Encompasses all life on earth and the physical environment that supports it.
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Photosynthesis
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A process in which a plant uses sunlight to produce food.
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Pollution
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The contamination of the environment with waste products or impurities.
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Biodegradable
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They can be broken down by microorganisms into harmless substances that can then be used by other organisms.
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Scientific Methods
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A developed organized, logical approaches to scientific research
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Observation
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Is using the senses of sight, touch, taste, hearing, and smell to information about the world.
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Measurement
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Involves a the comparison of some aspect of an object or phenomenon with a standard unit, such as a meter, a Celsius degree, or a kilogram.
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Hypothesis
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A possible explanation or solution to the problem.
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Experimentation
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Is a scientific procedure carried out according to certain guidelines.
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Variable
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Is a factor in an experiment that can be changed.
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Controlled Experiment
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Is an experiment set up to test a variable.
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Theory
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Is a hypothesis or a set of hypotheses that is supported by the results of experimentation and observation.
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Scientific Law
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Is a rule that correctly describes a natural phenomenon.
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Spectrum
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When light passes through a glass prism it produced a rainbow of colors.
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Wavelength
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The distance from the crest of on wave to the crest of the next.
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Elements
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Is a substance, such as hydrogen or iron, that can broken down into a simpler form by ordinary chemical means.
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Bright-line Spectrum
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A series of colored lines. And indicates that the light source is sending out only certain wavelengths of light.
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Doppler Effect
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The apparent shift in the wavelengths of energy emitted by an energy source moving away from or toward and observer.
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Spectroscope
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Contains a prism, which splits starlight into a spectrum of different colors and wavelengths.
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Big Bang
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An event that happened 17 million years ago and sent all the matter and energy hurtling outward in a giant cloud.
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Background Radiation
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Evidence for scientists who doubted the evidence of red shift.
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Big Bang Theory
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The theory of the Big Bang from the evidence of the background radiation.
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