Rock-It Science - Maps as Model - Unit 1

longitude line 180 degrees east or west of the prime meridian

distance, measured in degrees, north or south of the equator

distance, measured in degrees, east or west of the

key that explains symbols on a map

relates distances on a map to actual distances

shows Earth's surface from above

shows an object as though you were looking at it from the side

area on Earth where people use the same time; there are 24

operating or occurring overhead

topographic map line that connects points of equal elevation

a profile view that shows a vertical slice through rocks below Earth's surface

height above sea level

shows the surface geology of an area

difference in elevation between the highest and lowest point

collecting information about an area without being there

measured steepness of the land; to calculate: elevation (rise) divided by distance (run)

shows detailed shapes and natural and human-made features of Earth's surface

use shading and shadows to identify mountains and flat areas

a group of satellites used for navigation; 3 satellites required to locate a point, a 4th satellite can give elevation

global positioning system

integrated, computerized information used to store and analyze map data and create digital maps

geographic information system

series of satellites used to collect data about Earth's changing surface

series of satellite missions used to determine ocean topography, circulation, sea level, tides, El Nino and La Nina events, and climate changes

device that uses sonar to map the bottom of the ocean

a system for the detection of objects under water and for measuring the water's depth by emitting sound pulses and measuring the time for their return

short lines drawn inside a closed loop indicate a depression or crater; point downslope

contour lines never cross

heaviest contour lines, each labeled with elevation

the average elevation of the worlds ocean between high and low tide

contours point downslope

contours point upslope

the shape and height and depth of the features of a place

device having a magnetic needle that indicates direction on the earth's surface by pointing toward the north

fall between contour lines on a map

an imaginary circle of longitude on the earth's surface passing through the north and south poles

the meridian of 0° longitude from which other longitudes are calculated