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Science review notes
| Term | Definition |
|---|---|
| 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
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