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NYS E.S. Topic 2
Measuring Earth
| Term | Definition |
|---|---|
| model | a way to represent an object or system on a smaller scale |
| atmosphere | the layers of gases surrounding the Earth |
| pauses | general term for the boundaries between layers of the atmosphere |
| hydrosphere | a layer of liquid water that lays on top of the Earth, including oceans, lakes stream and rivers |
| lithosphere | layer of rock that forms the outer shell of the Earth. The upper portion is called the crust. |
| Coordinate system | using latitude and longitude to pinpoint an object’s location on Earth’s surface |
| latitude | angular distance north or south of the equator |
| longitude | angular distance east or west of the Prime Meridan |
| meridian | any semi-circle connecting the North and South poles |
| equator | a line marking the middle of Earth’s surface, halfway between the North and South poles. |
| Local noon | the time when the sun passes directly overhead. Moves 15* per hour |
| isolines | lines that connect points of equal field value |
| isotherms | lines connecting equal temperature values |
| isobars | lines connecting equal air pressure values |
| Topographic map | contour map showing elevation field values |
| elevation | vertical distance above or below sea level |
| profile | a side view of an area’s landscape |
| Compass rose | a symbol used on a map to show directions |