EESA06H3 Study Guide - Midterm Guide: Continental Crust, Oceanic Crust, Sedimentary Rock
Document Summary
Lecture 1(earth systems):biosphere: the living and dead organisms. hydrosphere: earths liquid and solid water (cryosphere). Atmosphere: mixture of gasses (78% nitrogen and 21% oxygen). lithosphere: the upper part of the solid earth. ecosphere: when all the spheres interact with the biosphere. Components of earth:compositional layers: crust, mantle, core. physical layers:lithosphere (solid, rigid), asthenosphere (solid, weak), mesosphere (solid), liquid outer core, solid inner core. seismic waves: p-waves (travel through liquids and solids) and s-waves (cannot travel through liquids). Crust:oceanic (earthquakes are faster) and continental crust (thicker). good and. Scientific explanations are tentative and can and do change (changes occur, example pluto). Scientific explanations should be predictable and testable (example is weather). Scientific explanations are based on observations or experiments and are reproducible. (glaciers going back to them)4. A valid scientific hypotheses offer a well-defined natural cause o mechanism to explain a natural event. (hypothesis is backed up like the ozone layer and atmosphere)bad science:1. an attack on scientist, not science (scientists fabricating data to support their hypotheses).
