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Science 6 unit two
Terms in this set (59)
A map is a _____ of earths surface.
When a map is drawn in _____, it appears as though you were looking down on an area from above earth's surface.
Cross sections are drawn in ______. This view shows a _____ slice through the ground, as though you were looking at earth's interior from the side.
A ____ lists all the symbols used on a map. It also _____ what each symbol means.
A ____ determines how large or how small a map might be.
A map scale shows the relationship between ____ on a map and actual ____ on the ground.
A scale can be written in words, as a _____, or as a scale bar.
Am imaginary ____ on earth's surface is used to find locations.
North-south grid lines on a globe run from one ____ to another and encircle earth.
The reference line that passes through Greenwich, England, is the ____.
The distance in degrees east or west of the prime meridian is ____.
East-west grid lines on a globe are lines of _____.
The reference line halfway between the North and south Poles is the ____.
Latitude lines form complete, ____ circles, eith the equator being the largest circle.
Earth is a sphere, which can be divided into ____ degrees.
The maximum latitude is one-fourth the distance around earth, or ____ degrees north or south.
The maximum longitude is half the distance around earth, or ___ degrees east or west.
To describe a location, name its latitude or longitude, giving its ____ first.
Each degree of latitude or longitude is divided into 60 _____, which is further divided into 60 seconds.
A _____ is a an area between two meridians in which every part has the same time.
Generally, the width of a time done is 15* ____.
Time changes by_____ when going from one time zone to another.
International Date Line
The line of longitude 180*east or west of the prime meridian is the ____.
When you cross the international date line from ____ to ____, it becomes one day later.
A ____ shows the surface of earth on a flat surface.
A ____ is formed by placing a light at the center of a globe and projecting the grid pattern on the globe onto a cylinder wrapped around the globe.
These maps are accurate in showing shapes near the _____.
Shapes near the ____ look much larger than they actually are.
A _____ is formed by placing a light at the center of a globe and projecting the grid pattern on the globe onto a cone wrapped around the globe.
There are several types of maps, depending on the ____ of the map.
____ maps show features such as mountains and lakes.
_____ maps use shading and shadows to show mountains and flat areas.
A _____ map shows boundaries between countries, states, and townships.
People use ____ maps to find their way from one place to another.
A _____ Mao shows the natural features of earth's surface as well as many of its detailed shapes.
The height above sea level of any point on earth's surface is the points _____.
_____ is the difference in elevation between the highest and lowest points in an area.
On a topographic map, _____ are labeled with the elevation.
On a topographic map, only the ____ are labeled with the elevation.
The difference in elevation between two contour lines that are next to each other is the ____.
If contour lines are close together, the _____ of the land is steep.
Information from contour lines can be used to draw an accurate _____ of the topography of the land.
The _____ on a topographic map describes the symbols used on the map.
_____ show the surface geology of an area.
Different formations on a geologic map are shown by different colors and ____.
Geologists use a ______, a type of diagram, to show a vertical slice through rocks below the surface.
Today, people use computers and data from _____ to make maps.
Global Positioning System
The ______ is a group of satellites used for navigation.
A GPS receiver uses signals from several satellites to calculate its ____.
GPS is used for _____ by people in airplanes and ships.
Geographic information system
A _______ stores and analyzes data sent to it, usually by GPS.
Mapmakers use this data to create ____ .
GIS creates different map _____ of the same location.
When you collect information about an area without having physical contact with it, you use ____.
Much remote-sensing information used to make maps is now supplied by _____.
One important use of remote sensing is to detect ____ over time in an area.
The series of satellites known as _____ scans earth's entire surface every 16 days. Using the data to study _____ helps scientists follow climate changes and bird populations.
The ____ and _____ sattelites have been used in,ensuring bulges and valleys below the oceans surface.
Sound is used to map the ocean floor when _____ sonar is used from a ship.
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