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Science review notes

Map the features of the earth usually drawn on a flat service
globe a circular object with the earth on it
Scale An area on a a map that shows how far a certain distance is.It is usually shown as a ratio
symbols different symbols to show thing on a map
key It gives you the information on the symbols to find stuff on the map.
equator an imaginary line separating the northern hemisphere and the southern hemisphere
hemisphere it is half of the earth. It is divided by northern and southern
prime meridian it divides the eastern and western hemisphere it pasts through greenwich England
degree a measurements around a 360 degree circle
latitude defines an exact location on a globe by adding imaginary verticals lines with longitude
longitude it gives the north and south of the equator of degrees
Map projection s a framework of lines that helps to show landmasses on a flat surface
Mercator projection lines of latitudes and longitude all appear as straight parallel lines that form a rectangle. The shape of the land masses are distorted by the poles. Meaning, it changes the size of the landmasses.
Equal Area projection shows the relative sizes of the earth's landmasss near the edges of the map appear stretched near the edges of the map appear stretched and curved.
topographic map it shows the elevation and relief using contour lines.
contour interval the distance between the contour lines
global positioning system a satellite based navigation system
Topography Defn. The shape of the land Three things determine topography Elevation- height above sea level Relief- difference between the highest and lowest parts of an area Landforms-- a feature formed by the processes that shape the Earth’s surface
Mountain have very high elevation and the relief is very big since the elevation is so high. Mr. D answer-Landform with high elevation and high relief. (part of a mountain range)
Plain have very low elevation because they are flat and grassy. Plains do not have much relief because they are very flat on top. -- flat or gently rolling land with low relief and low elevation Their is a coastal plain and an interior plain
Plateau have a relatively high elevation. The relief is pretty small. It is very flat on top Mr. D answer-- landform that has high elevation and level surface with low relief
lithosphere Earth's solid, rocky outer layer. Made of up continents and smaller landmasses called islands also goes over the ocean floor
hydrosphere Earth’s oceans, lakes, rivers, and ice form the hydrosphere. Most is in salt water in the oceans.
atmosphere The mixture of gases that surrounds the planet.
Biosphere All living things. Doesn’t matter where they live. All living things
Satellite Mapping are pictures of the surface based on computer data. -Pictures made by Landsat. A satellite that makes picture 185 km. wide -Pictures show what covers that land.
Pixels tiny dots that make up an image different colors mean different areas of land from the image-- used to compare areas after a flood or drought
Computer Mapping Computer mapmakers are always learning new ways of storing and displaying map data -Digitizing is converting the location of map points to numbers. Once digitized you can see them on a map
Created by: Cobester