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49 Cards in this Set
- Front
- Back
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What is the World Ocean?
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The World Ocean is the entire body of saltwater that covers over two-thirds of the Earth.
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What are the four functions of the World Ocean?
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The four functions of the World Ocean are:
(1) to supply the Earth with freshwater (2) to control the Earth's climate (3) to provide the Earth with food and salt (4) to provide the world with a means of transportation. |
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What is the Water Cycle?
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The Water Cycle is the continuous movement of water on, above and below the surface of the Earth.
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What are the four steps of the water cycle?
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The four steps of the Water Cycle are:
Evaporation Condensation Precipitation Storage and Run-off. |
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What water bodies are formed by the water cycle?
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Rivers, Springs, Lakes and Glaciers are formed by the Water Cycle.
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What is a River?
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A River is a stream of freshwater running off the Earth into another body of water.
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What is a Spring?
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A Spring is a stream of freshwater flowing from the groundwater supply to the surface of the earth or into another body of water.
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What is a Lake?
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A Lake is a large body of water not directly connected to an Ocean.
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What is a Glacier?
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A Glacier is a large body of frozen freshwater on the Earth found in regions where the rate of precipitation exceeds the rate of melting.
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Examples of Rivers
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a. Nile River - Africa
b. Amazon River - South America c. Tiber River - Rome, Italy d. Mississippi River - United States e. Niagara River & Falls - United States/Canada |
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Where is the Nile River?
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Nile River - Africa
(River mouth at 31°N, 31°E) |
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Where is Amazon River?
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Amazon River - South America
(River mouth at 1°N, 49°W) |
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Where is Tiber River?
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Tiber River - Rome, Italy
(River mouth near 41.74°N, 12.23°E) |
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Where is Mississippi River?
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Mississippi River - United States
(River mouth near 30°N, 90°W) |
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Where is Niagara River & Falls?
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Niagara River & Falls - United States/Canada
(Falls near 43°N, 79°W) |
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Where is Lake Superior?
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Lake Superior, United States (Center: 48°N, 87.5°W)
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Where is Lake Victoria?
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Lake Victoria, Africa
(Center: 1.0°S, 32.93°E) Note: It feeds the Nile River, which flows to the East. |
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Where is Lake Michigan?
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Lake Michigan, United States
(Center: 43.5°N, 87°W) |
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Where is Lake Titicaca?
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Lake Titicaca, Peru/Bolivia (Center: 15.8°S, 69.3°W)
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Where is Hubbard Glacier?
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Hubbard Glacier - Alaska, United States
(60°N, 139.4°W) |
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Where is Perito-Moreno Glacier?
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Perito-Moreno Glacier
(50.47°S, 73.03°W) |
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Where is Vatnajökull Glacier?
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Vatnajökull Glacier - Europe
(Center: 64.2°N, 17.15°W) |
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You know that after a rain, the street is covered with water--there may even be puddles. When the sun shines bright again, the heat and wind absorbs the water from the street back into the air and the street is dried.
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Evaporation
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The heat of the sun and winds draw water up from the ocean surface into the air--water that is free of salt! The water fills the warm air and is carried by the winds over the land.
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Evaporation
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As the wet air moves across the land, it eventually cools and forms water droplets which creates the rain clouds as warm wet air cools.
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Condensation
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The water in the warm air outside of the glass cools as it moves against the cold glass and condenses, forming water droplets.
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Condensation
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rain, snow, hail, ice, etc.
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Precipitation
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As the water in the clouds continues to condense, the water droplets get larger and larger. When the size and speed of falling drops becomes great enough, the droplets will fall to the Earth.
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Precipitation
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Water that runs of the Earth by rivers and streams as snow and ice melts and rain waters move through the valleys.
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Run-off
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Examples of Water Storage
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~snow and ice
~lakes and ponds ~under the Earth as groundwater |
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Where is the cleanest water usually found?
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under the ground
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Latin word for River
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Latin = fluvius
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Greek word for River
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Greek = potamos
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land channel through which the water runs
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bed of the river
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land borders on each side of the river
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the river's banks
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largest river in the word
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Nile River in Africa
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the top level of this underground water
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the water table
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Groundwater that is pure enough for use in drinking, cooking and other household uses
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soft water
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Four different classes of lakes
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~lakes that have no inlet or outlet
~lakes that do not receive running water from any other sources but have an outlet ~lakes which have both inlets and outlets ~lakes which receive running water from other sources, but do not release it |
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periodical lakes
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Periodical lakes that have no inlet or outlet. The only water they contain comes by rainfall or by underground springs and it remains there until it is evaporated at some later time--usually during a dry season. These lakes are normally very small.
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An example of a lake that do not receive running water from any other sources but have an outlet.
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Lake Victoria in Africa, which is the source of the Nile River
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An example of a lake which receive running water from other sources, but do not release it.
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Caspian Sea
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An example of lakes which have both inlets and outlets.
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Great Lakes at the northern border of the United States, which empty into the St. Lawrence River
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the most numerous division of lakes
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lakes that have both inlets and outlets
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Where is most of the freshwater on Earth found?
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glaciers
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Where does the word glacier come from?
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Latin word glacies = ice
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World's largest island
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Greenland
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Two places on Earth completely covered by glaciers
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Greenland and Antarctica
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Groundwater that contains higher levels of minerals that affects how well the water can be used for drinking, cooking and cleaning
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hard water
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