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