Ch 1 sec 2
There are certain basic elements to every map. All maps will have some of these, but may not have all of them. Title – this explains the subject of the map and tells you what the map is about Compass Rose – this shows you the cardinal directions (N,S,E,W). Sometimes only North is shown on the compass rose.
Labels – words or phrases that explain features on the map Legend – Also called a key, it explains the symbols and colors used on a map Lines of Latitude – imaginary lines that measure the distance north or south of the equator. Lines of Longitude – imaginary lines that measure the distance east or west of the prime meridian
Scale – this shows the ratio between a unit of length on the map and a unit of distance on the earth Symbols – these can represent capital cities, economic activities, or natural resources. The legend explains these Colors – colors on maps can represent a wide range of information. The legend explains these
A projection is a way of showing the curved surface of the earth on a flat map. Because the earth is round, there will be some distortion to aspects of the earth. A planar projection is a projection onto a flat surface. This is usually done at either the north or south pole, and distorts both the size and shape of the land masses.
Conical projections project the map onto a cone. This keeps the shape close to the original, but distorts land at the edges. They are used to show large landmasses that stretch east and west. Compromise projections projects the map onto a cylinder. It shows the earth on one map, and there are 3 main types of compromise projections.
The Mercator projection distorts the shapes of the continents at the poles, and compresses them at the equator. The homolosine map divides the oceans to keep give an accurate depiction of the landmasses, but distances are not accurate.
The Robinson projection shows the entire earth with nearly true depictions of the continents and oceans. The shapes of the landforms near the poles is distorted.
There are two main types of maps we will be using: physical maps and political maps. Physical maps show landforms and bodies of water found in a specific area. Colors, shading, and contour lines indicate altitude or elevation. Political maps show features that humans have created, such as borders of countries, cities, states, or territories. Color or shading is used to differentiate between regions.
Create a full page map of the area around your home. Include all of the elements needed to read a map. Be creative in using them.