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Earth CH 3
Earth Science Chapter 3 Review
| Question | Answer |
|---|---|
| What is an example of a fractional scale? a. 1 ft = 1 mile b. 1:26000 c. a printed line like on a rule d. one foot = one mile | B. 1:26000 |
| What do cartographers do? | They make maps. |
| What two ways to cartographers gather information for making maps? | Remote Sensing and Field Surveys |
| What do geologic maps show what? | The distribution of rocks, faults, folds, and other structures. |
| What is longitude? | The angular distance east and west from the prime meridian. |
| What is latitude? | The angular distance east and west from the equator. |
| A ration used as a scale on a map is called a what? | Fractional Scale |
| What is a compass rose? | A symbol on a map that shows cardinal directions. |
| Contact lines on a geological map show what? | Where two geological units meet. |
| What is a geological unit? | A volume of rock of the same type and age range. |
| Longtide indicates positions using what? | Semicircle lines east and west of the prime meridian. |
| How do cartographers conduct field surveys? | Walking or driving the area to be mapped and taking measurements. |
| Describe an azimuthal projection. | A projection made by placing a sheet of paper against a transparent, lighted globe so that the paper touches the globe at only one point. |
| Where is distortion on azimuthal projections least and greatest? | Least: At the point of contact Greatest: As distance from the point of contact increases. |
| Describe a cylindrical projection. | A projection made by wrapping a cylinder of paper around a lighted globe. |
| Where is distortion on cylindrical projections least and greatest? | Least: Middle Greatest: Edges/Poles |
| Where is distortion on conic projections least and greatest? | Least: Areas near the parallel where the cone and globe contact. Greatest: At the edges. |
| Describe a conic projection. | A projection made by placing a paper cone over a lighted globe so that the axis of the cone aligns with the axis of the globe. |
| What are cardinal directions on a map? | north, south, east, and west |
| What is a legend? | A list of map symbols and their meanings. |
| What is topography? | Size and shape of Earth's surface features |
| What is the definition of relief? | Difference between the highest and lowest elevations. |
| What is the definition of elevation? | The height above sea level of land or an object. |
| What is the definition of isogram? | A map line indicating constant or equal values over an area. |
| What is the geomagnetic north pole? | The place where a compass points. |
| What is the definition of a scale? | Relationship between distance on a map and actual distance. |
| What is the definition of a contour line? | A map line connection points of equal elevation. |
| How do we use latitude and longitude to locate a place on Earth? | We find how far north or south of the equator a location is and then find how far east or west of the prime meridian it is, thus giving us exact coordinates to a destination. |
| MATH: A map scale of a road says, "one inch equals 3.5 miles." Measured along the highway on the map, the distance between Spanish Fort and Daphne is 2.5 inches. What is the actual distance between the towns? | 2.5 (inches on the map) x 3.5 (miles in actual distance) = 8.75 miles between the two towns. |
| A topographical map has a contour interval of 30 m. How much would you change in elevation if you crossed 10 contour lines? | 10 (contour lines) x 30m (for each line) = 300m in elevation change. |
Created by:
brittneymr
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