Intro to Earth Science Flashcards
Earth Science
understanding Earth and all other celestial objects in space (all sciences); includes geology, oceanography, meteorology, and astronomy
Location of Earth Science Study
outdoors or laboratory
Geology
study of earth and rock formations
Oceanography
study of the ocean
Meteorology
study of atmosphere and weather patterns
Astronomy
study of the universe
Geologic time
span of time since Earth’s formation; analogy: Washington Monument - height of monument = length of geologic time
Science
definition
natural world = consistent and predictable; scientists use observation and measurement; understood through careful, systematic study
Cloud types
determined by nephrologists(study clouds) and time/place of formation
Hypothesis vs. theory
hypothesis = untested explanation/prediction; theory = well-tested hypothesis that is based on facts
Steps in Scientific process
1.) Question
2.)Background research
3.)Hypothesis
4.)Observations/Experiments
5.)Analyze data
6.)Evaluation/turns into theory
Ancient View vs. Modern View of Astronomy
-Ancient astronomy beliefs = positions and movements of celestial objects (planets)
-Modern astronomy beliefs= orgin of celestial objects and movement
Geocentric vs. Heliocentric
-Geocentric: Earth = center of universe
-Heliocentric: Sun = center of solar system
Chinese Contributions to Ancient Astronomy
record-keeping (Sun, Moon, and planet positions vs. fixed stars); predicted Comets, but not sure how or why; comets = mystical (=bad omens and worldly disasters)
“Golden Age” of Astronomy
centered in Greece; measured size and distance of Sun and Moon