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UNIT ONE: Science Skills

UNIT ONE: Science Skills. Chapter 1 Measurement Chapter 2 The Scientific Process Chapter 3 Mapping Earth. Chapter One: Measurement. 3.1 Position, Coordinates, and Maps 3.2 Topographic Maps 3.3 Bathymetric Maps. Section 3.2 Learning Goals.

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UNIT ONE: Science Skills

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  1. UNIT ONE: Science Skills • Chapter 1 Measurement • Chapter 2 The Scientific Process • Chapter 3 Mapping Earth

  2. Chapter One: Measurement • 3.1 Position, Coordinates, and Maps • 3.2 Topographic Maps • 3.3 Bathymetric Maps

  3. Section 3.2 Learning Goals • Construct a topographic map and describe its features. • Use relevant vocabulary, like relief and elevation, to describe map features. • Describe the role of technology in topographic mapping advances over time.

  4. Investigation 3B Topographic Mapping • Key Question: How do you make a topographic map from a 3-dimensional surface?

  5. 3.2 Mapping Earth • Relief describes the distance between high and low places on a map. • Relief maps show mountains and other land features using raised bumps, shading or colors. What color shows the deep places in the ocean?

  6. 3.2 Mapping Earth • Elevation means the height of an object measured from a reference level. • Usually the reference level that is used on maps is called sea level. • Sea level is an average level of the ocean. Can you estimate how far the fish is below sea level?

  7. 3.2 Topographic maps • A topographic map is a map that shows elevation. • Topographic maps use special lines called contour lines to show mountains and other land features.

  8. 3.2 Topographic maps • Topographic maps show the difference in elevation through the use of contours. • Contour lines connect points of equal elevation.

  9. 3.2 Technology and topographic maps • In 1879, the United States Geological Survey (USGS) was created by an act of the U.S. Congress.

  10. 3.2 Making topographic maps • Today, aerial photographs are overlapped to create a 3-D image of an area.

  11. 3.2 Making topographic maps • Special software, computer technology, and stereo glasses are used to make topographic maps.

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