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34 Cards in this Set

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