2 Earth ScienceThe name for all the sciences that collectively seek to understand the Earth.Geology – the study of the solid EarthPhysical - Examines the materials & processes that make up the EarthHistorical - establish a timeline of the changes that have occurred in the past
3 Earth Sciences Oceanography – the study of all aspects of the ocean Meteorology – the study of the atmosphere and the processes that produce weather and climateAstronomy – the study of the universe
4 Physical vs. Living Environment Physical EnvironmentHydrosphere – water portionAtmosphere – gaseous envelopeGeosphere – solid EarthLiving EnvironmentBiosphere – all life forms on Earth (interacts with physical environment)
5 The Hydrosphere Oceans 97% saltwater Ice Water Vapor 3% freshwater Lakes & RiversGroundwater
6 The Atmosphereprotects us, keeps Earth the right temperature, and has the gases needed for life to thrive.
8 The BiosphereLiving things depend on the physical environment to sustain lifeOrganisms help maintain and alter the physical environment
9 Forces affecting Earth’s Surface ConstructiveBuild up the surface by raising the land and depositing new materialExamples: Mountain building, VolcanismDestructiveWear away high points work to flatten the surfaceExamples: Weathering, Erosion