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Exploring the United States
Study your words daily
30
Social Studies
4th Grade
09/10/2012

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Cards

Term
Hemisphere
Definition
A half of Earth
Term
Equator
Definition
An imaginary line that divides the Earth into the Northern and Southern Hemisphere.
Term
Prime Meridian
Definition
An imaginary line that is often used to divide the Earth into the Western and Eastern Hemisphere.
Term
Continent
Definition
One of the seven largest land areas on Earth.
Term
Relative Location
Definition
Where a place is in relation to one or more other places on Earth.
Term
Border
Definition
A line that shows the end of a place.
Term
Gulf
Definition
A part of the ocean or sea extending into land.
Term
Absolute Location
Definition
The exact position of a place on Earth, using lines of latitude and longitude.
Term
Lines of Latitude
Definition
A set of lines that run east and west drawn on maps and globes. The are measured in degrees north and south from the equator.
Term
Lines of Longitude
Definition
A set of lines that run north and south, from the North Pole to the South Pole, drawn on maps and globes. They are measured in degrees east and west from the prime meridian.
Term
Landform
Definition
One of the shapes that make up the Earth's surface, such as mountains, hills, valleys, or plains.
Term
Sea Level
Definition
The level of the surface of the ocean.
Term
Plateau
Definition
An area of high, flat land
Term
Source
Definition
The place where a river begins.
Term
Tributary
Definition
A river or stream that flows into a larger river.
Term
Mouth
Definition
A place where a river empties into a larger body of water.
Term
Basin
Definition
Low, bowl shaped land with higher ground all around it.
Term
Canyon
Definition
A deep, narrow, valley with steep sides.
Term
Temperature
Definition
The measurement of hot and cold.
Term
Precipitation
Definition
Water that falls to the Earth's surface as rain, snow, sleet, or hail.
Term
Climate
Definition
The kind of weather a place has most often, year after year.
Term
Humidity
Definition
The amount of moisture in the air.
Term
Natural Resources
Definition
Something found in nature, such as water, soil, or minerals, that people can use to meet their needs.
Term
Renewable
Definition
Something that can be made again by nature or by people.
Term
Groundwater
Definition
Water that sinks beneath Earth's surface when it rains or snows.
Term
Industry
Definition
All the businesses that make one kind of product or provide one kind of service.
Term
Mineral
Definition
A natural substance found in rocks.
Term
Nonrenewable
Definition
Something that cannot be made again by nature or by people.
Term
Environment
Definition
Surroundings in which people, plants, and animals live.
Term
Conservation
Definition
The protection and wise use of natural resources.
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