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39 Cards in this Set

  • Front
  • Back
Middle ages
A period of history that lasted from the fall of Rome in the 5th century to the renaissance period in the 15th century, about 1000 years
Antipodes
a pair of points that are on opposite sides of a planet
Equator
an imaginary line drawn around the earth equally distant from both poles, dividing the earth into northern and southern hemispheres and constituting the parallel of latitude 0°.
Poles
the two ends of the axis around which the earth rotates (north pole and south pole)
Compass Rose
a circle showing the principal directions printed on a map or chart
Axis
an imaginary line on which the earth rotates, (turns)
Rotation
the act of turning around an axis
Revolution
a turning axis or rotation movement about an axis
Orbit
To revolve around, the path of a planet around the sun, or the path of the moon around the earth
Leap Year
a year with an extra day (366) to make up for a small amount of accumulated extra time; happens once every four years
Equinox
two times per year when day and night are of equal length
Solstice
two times per year when the sun reaches its highest or lowest point in the sky, marked by the longest and shortest days
River
A large, natural stream of water flowing in a channel to the sea, a lake or another river
Gulf
A deep inlet of the sea almost surrounded by land, with a narrow opening, (called a mouth)
Mountain
A large, natural elevation of the earth’s surface rising abruptly from the surrounding level
Fossil
the remains or impression of a prehistoric plant or animal preserved in rock
Glacier
large, slow moving mass of ice
Delta
A triangle deposit of sediment left at the mouth of a river
Silt
Fine material carried by running water
Deposition
The process of layered materials (such as sediment) being deposited by movement
Erosion
the process of being broken or worn down by wind, water or other natural agents
Rift
A crack or line between the earth’s crust that moves or pulls apart
Tectonic Plate
2 sub-layers of the earth’s crust that move
Strait
A narrow body of water connecting two longer bodies of water
Lake
A body of water that is completely surrounded by land
Elevation
Height above or below sea level
Plateau
Vast, high area of land that is mostly level
Valley
A low area between mountains, hills or other elevated land
Topography
The shape of the land surface of the earth
Peninsula
Areas of land that are almost surrounded by water or projecting out into a body of water
Islands
Bodies of land completely surrounded by water
Continent
The seven largest areas of land on the earth
Map Projections
The representation on a flat surface of part of all of the surface of the earth
Global Positioning System
A system that shows you the exact latitude and longitude of your position on earth using satellites, computers and receivers
International Dateline
An imaginary line at 180⁰ longitude that marks one calendar day from the next
Sundial
An instrument showing the time by the shadow cast by the sun onto a plate marked with the hours of the day
Prime Meridian
The baseline used to measure east west location on the surface of the earth
Longitude
Imaginary lines that measure the distance east or west of the Prime Meridian on a map or globe
Latitude
Imaginary lines that measure the distance north or south of the equator on a map or globe