Map Making
Map Projections
3 Projections
Reading a Map
Map Scales
100
Why do scientist make maps?
What is because most globes are too small to show the details of the earth surface such as rivers, highways etc. and making a map allows people to study and display the details
100
What is a map?
What is flat representation of Earth's curved surface
100
How would you make a Cylindrical projection?
What is If you wrapped a cylinder of paper around a lighted globe and traced the outlines of continents, oceans, parallels, and meridians. Shapes of small areas are usually preserved.
100
Name the advantages of Conic projection
What is 1.areas near the parallel where the cone and globe are in contact are distorted the least 2. a series of conic projections can be used to increase accuracy by fitting adjoining areas together (polyconic projection) The size and shape nearly the same as globe
100
To be accurate a map must be drawn to what _____ Define it
What is scale. Scale is the relationship between the distance shown on a map and the actual distance
200
The science of making maps is called
What is cartography
200
What happens when you transfer a curved surface (globe) to a flat map
What is the result is a distorted image. It may be distorted in size, shape, distance, or direction.
200
Name an advantage and disadvantage of cylindrical projection
What is advantage- parallels and meridians form a grid (which makes locating positions easier), and its accurate near the equator disadvantage- it distorts distances and sizes near the poles, but it is minimal
200
Maps provide information through the use of symbols. You must understand the symbols to be able to find directions. To correctly interpret a map you must...
What is first determine how the compass directions are displayed on the map
200
Map scale can be expressed in three ways... name them and explain the 3rd
What is 1. graphic scale 2. fractional scale 3. verbal scale - expresses scale in sentence form
300
Scientist who make maps are called
What is cartographers
300
Over the years cartographers have developed ways to transfer curved surface to flat maps, name it
What is Map projection
300
How would you make an Azimuthal projection?
What is place a sheet of paper against a globe so that paper touches the globe only at one point.
300
Maps are commonly drawn with north at top, south at bottom, east to the right and west to the left. Parallels run from side to side, meridians run from top to bottom. Maps use parallel of what_____and meridians of what____ to indicate direction and location
What is parallels of latitude meridians of longitude
300
Explain graphic scale
What is a printed line that has markings that represent units of measure such as meters or kilometers
400
What are some of data sources that cartographers use to make maps
What is field surveys and remote sensing
400
Map Projection is
What is a flat map that represents a spherical surface (3D curved surface)
400
Name advantages and disadvantages of Azimuthal projection
What is advantages-little distortion is created at point of contact, the great circles appear as straight lines which is very useful for plotting navigational paths (air travel) disadvantage- unequal spacing between the parallels cause distortion in both direction and distance
400
Maps also include a compass rose which is..
What is a symbol that indicates the cardinal direction (N,E,S,W) or an arrow that points to geographic north
400
Explain fractional scale
What is a ratio that indicates how distance on Earth relates to distance on a map
500
What is remote sensing
What is process of gathering and analyzing information about an object without physically being in touch with the object
500
Name the three kind of map projections
What is Cylindrical, Azimuthal, and Conic
500
How would you make a Conic projection?
What is by placing a paper cone over a lighted globe so that the axis of the cone aligns with the axis of the globe.
500
Maps have symbols for features such as cities and rivers. These symbols are explained in the map legend which is..
What is a list of the symbols and their meanings. Symbols may resemble the features that they represent or they may be more abstract
500
A line on a map that represents a constant or equal value is call an isogram. Define it and explain how its used
What is a line on a map that represents a constant or equal value. The 2nd part of the word gram can be changed to describe the measurement being graphed (isotherm) Isograms can be used to plot many types of data (density, temperature, atmospheric pressure, gravity, magnetism, elevation, precipitation, and chemical composition).
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