How do geographers use tools to understand the world?




Download 48.08 Kb.
TitleHow do geographers use tools to understand the world?
Date25.07.2013
Size48.08 Kb.
TypePresentations





How do geographers use tools to understand the world?

  • How do geographers use tools to understand the world?

  • What are the five themes of geography?

  • How do geographers identify location, place, and region?

  • Why do geographers study movement and human-environment interaction?





Geography means “writing about” or “describing” the earth.

  • Geography means “writing about” or “describing” the earth.

  • Geographers use technological tools such as sonar, satellites, and the global positioning system (GPS) to study locations on the earth’s surface.

  • Growing in importance are graphic information systems (GIS), which use computer technology to analyze and display data about the earth’s surface to solve geographic problems.

  • Geographic concepts help organize the way people think about geography.



What is the location of a place? (location - absolute/relative)

  • What is the location of a place? (location - absolute/relative)

  • What is the character of a place? (place - physical/human characteristics)

  • How are places similar to and different from other places? (regions - formal / functional / perceptual)

  • How do people, goods, and ideas move between places? (movement - transportation/communication)

  • How do people interact with the natural environment of a place? (human environment interaction)



Absolute location describes the position of a place on the globe using the grid of longitude and latitude lines.

  • Absolute location describes the position of a place on the globe using the grid of longitude and latitude lines.

  • Relative location describes the location of a place compared to other places.

  • The character of a place consists of the place’s physical and human characteristics.

  • A region is a group of places with at least one common physical or human characteristic, and may be determined by people’s perceptions, or viewpoints influenced by one’s own culture and experiences.

  • Formal regions are areas in which a certain characteristic is found throughout them.

  • Functional regions consist of a central place and the surrounding places affected by it.

  • Perceptual regions are defined by people’s attitudes and feelings about areas.





People, goods (TRANSPORTATION), and ideas (COMMUNICATION) move between places.

  • People, goods (TRANSPORTATION), and ideas (COMMUNICATION) move between places.

  • Human beings have made enormous changes in their environment, both intentional and accidental.

  • Changes to the environment can be favorable, making some places more habitable.

  • Changes can also be destructive, altering an area’s ecosystem and straining local resources.



How do geographers use geographic information systems (GIS)?

  • How do geographers use geographic information systems (GIS)?

    • a) They use it to map the bottoms of the oceans.
    • b) They use it to collect, analyze, and display geographic information.
    • c) They use it to provide accurate information about location.
    • d) They use it to record images of the earth’s surface.
  • How is absolute location described?

    • a) It is described by its relation to other places.
    • b) It is described as a group of places sharing a common characteristic.
    • c) It is described by its physical and human characteristics.
    • d) It is described by the grid formed by longitude and latitude lines.


How do geographers use geographic information systems (GIS)?

  • How do geographers use geographic information systems (GIS)?

    • a) They use it to map the bottoms of the oceans.
    • b) They use it to collect, analyze, and display geographic information.
    • c) They use it to provide accurate information about location.
    • d) They use it to record images of the earth’s surface.
  • How is absolute location described?

    • a) It is described by its relation to other places.
    • b) It is described as a group of places sharing a common characteristic.
    • c) It is described by its physical and human characteristics.
    • d) It is described by the grid formed by longitude and latitude lines.


How do scientists classify the earth’s major physical characteristics?

  • How do scientists classify the earth’s major physical characteristics?

  • What physical processes affect the earth’s crust?

  • What theories help scientists understand the earth’s past?



Geologists envision three layers to the earth: the core, or center, the mantle, or a thick layer of rock around the core, and the crust, the thin rocky layer on the surface.

  • Geologists envision three layers to the earth: the core, or center, the mantle, or a thick layer of rock around the core, and the crust, the thin rocky layer on the surface.

  • Landforms and other surface features make up the lithosphere.

  • The atmosphere is the layer of air, water, and other substances above the surface.

  • The water in lakes, rivers, and oceans, and water beneath the surface is the hydrosphere.

  • The large landmasses in the oceans are the continents.

  • Landforms are categorized by their differences in relief, or the differences in elevation from the highest to the lowest points.



Volcanoes

  • Volcanoes

  • Volcanoes form when magma breaks through the earth’s crust.

  • When lava flows evenly, it forms a plateau-like shield volcano.

  • An ash and cinder eruption can produce small cinder cone volcanoes.

  • Alternating explosive eruptions and smooth lava flows produce distinctive cone-shaped volcanoes.









According to the theory of plate tectonics, the lithosphere is broken up into a number of moving plates, on which continents and oceans ride.

  • According to the theory of plate tectonics, the lithosphere is broken up into a number of moving plates, on which continents and oceans ride.

  • The theories of continental drift and seafloor spreading support the theory of plate tectonics, and it is thought that the force of convection drives the movement of tectonic plates.



The movement of plates can create rift valleys, mountain ranges, volcanoes, faults, and earthquakes, depending the how the plates are moving.

  • The movement of plates can create rift valleys, mountain ranges, volcanoes, faults, and earthquakes, depending the how the plates are moving.

  • The Ring of Fire is a group of volcanoes and volcanic islands around the rim of the Pacific Ocean.



What term is used to describe the water on and below the surface?

  • What term is used to describe the water on and below the surface?

    • a) lithosphere
    • b) atmosphere
    • c) hydrosphere
    • d) biosphere
  • Which process is used to describe the movements of tectonic plates?

    • a) subduction
    • b) convergence
    • c) faulting
    • d) convection


What term is used to describe the water on and below the surface?

  • What term is used to describe the water on and below the surface?

    • a) lithosphere
    • b) atmosphere
    • c) hydrosphere
    • d) biosphere
  • Which process is used to describe the movements of tectonic plates?

    • a) subduction
    • b) convergence
    • c) faulting
    • d) convection


What are the lasting effects of the two kinds of weathering — mechanical and chemical — on the physical landscape of a place?

  • What are the lasting effects of the two kinds of weathering — mechanical and chemical — on the physical landscape of a place?

  • How do the three most common causes of erosion — water, wind, and glaciers — alter the physical landscape of a place?



Mechanical Weathering

  • Mechanical Weathering

  • Mechanical weathering occurs when the rock is physically weakened or broken.

  • The most common mechanical weathering occurs when water freezes in cracks in rock (frost wedging)

  • Seeds taking root in cracks



Erosion is the movement of weathered material such as gravel, soil, and sand.

  • Erosion is the movement of weathered material such as gravel, soil, and sand.

  • Moving water is the single greatest cause of erosion, especially when carrying sediment.

  • Wind, the second major cause of erosion, can strip away exposed soil, but windblown deposits of loess, mineral-rich dust and silt, can also benefit farmers.

  • Glaciers, huge, slow-moving sheets of ice, are also major agents of erosion, as they pick up and drag along dirt, rocks, and boulders.

  • During the Ice Ages, glaciers covered up to a third of the earth’s surface.

  • In places where glaciers have melted and receded, they have left behind ridgelike piles of rocks and debris called moraines.



Acid rain is

  • Acid rain is

    • a) a type of sediment.
    • b) a type of mechanical weathering.
    • c) wind-blown dust and silt.
    • d) a type of chemical weathering.
  • How can wind be a force of erosion?

    • a) It can deposit silt on an alluvial plain or delta.
    • b) It can quickly carve out valleys and canyons from solid rock.
    • c) It can carry away dry soil and sand.
    • d) It can act as a form of chemical weathering.


Acid rain is

  • Acid rain is

    • a) a type of sediment.
    • b) a type of mechanical weathering.
    • c) wind-blown dust and silt.
    • d) a type of chemical weathering.
  • How can wind be a force of erosion?

    • a) It can deposit silt on an alluvial plain or delta.
    • b) It can quickly carve out valleys and canyons from solid rock.
    • c) It can carry away dry soil and sand.
    • d) It can act as a form of chemical weathering.


Welcome to add document to your blog or website

Related:

How do geographers use tools to understand the world? iconArticulate several tools that are available for keeping your knowledge...

How do geographers use tools to understand the world? iconFrederick J. Forck 4Konsulting, llc using Tools Use a tool Using Cause Analysis Tools

How do geographers use tools to understand the world? iconTo understand the causes of World War I to understand the causes of World War I

How do geographers use tools to understand the world? iconLinks all facts and activities to help students understand the real-world...

How do geographers use tools to understand the world? iconRacism Tools to Identify and Tools to Work to Undo Racism

How do geographers use tools to understand the world? iconScott C. Brown, Ph. D. Colgate University acpa march 28, 2011 Context...

How do geographers use tools to understand the world? iconMust understand history to understand the current ideas about public...

How do geographers use tools to understand the world? iconThis text was designed to help you: Understand the real world of...

How do geographers use tools to understand the world? iconTo understand this concept, it is important to understand the environmental variables around us

How do geographers use tools to understand the world? iconLanguage Why do geographers study language?

Place this button on your site:
shrdocs.com


The database is protected by copyright © 2013
send message
shrdocs.com
Main page