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15 questions
Water on Earth is found naturally as a solid, a liquid, and a gas. Where is MOST of the solid water on Earth?
Deep in Earth's mantle
In Earth's polar regions
In the outer atmosphere
At the bottom of the ocean
Only 3% of the water on Earth is freshwater. About 60% of that water is not available for man's use. Why is this?
It is frozen
It is polluted
It is too salty
It is in aquifers
Approximately 99.7% of all water on Earth is found in oceans, seas, ice, and the atmosphere. Based on this information, which statement is most accurate?
The Earth's freshwater supply is infinite.
Less than 0.3% of Earth's water is drinkable.
Humans are not dependent on ocean water.
The water cycle returns all usable water to the sea.
Use the chart to answer question 4.
About 97% is found as evaporated water and 3% is frozen water.
About 97% is found as fresh water and about 3% is salt water.
About 97% is found as frozen water and 3% is liquid water.
About 97% is found as salt water and about 3% is fresh water.
About 97% is found as evaporated water and 3% is frozen water.
Approximately what percent of the Earth’s water is salt water?
97%
71%
1%
3%
Where is most of the world’s water found? Use the justifications to make your choice.
Rivers and lakes: The exact depth of the rivers and lakes changes so it is difficult to determine volume.
Aquifers: underground water, ground deposits: All of the sources of underground water have not been found.
Oceans: The oceans contain more water by volume than any other source
Polar ice: The amount of ice below the surface is difficult to determine.
Which statement about Earth’s water is TRUE?
The total amount of water on Earth constantly changes.
The total amount of water on Earth stays the same.
People can live without water.
Plants and animals can live without water.
What is groundwater?
water that fills space between rocks of Earth
water found within a lake or pond
water that is evaporated from the surface of Earth
water that is found in the ocean
Water can exist on Earth as...
solid ice
liquid water
the gas water vapor
All of above
What are the two kinds of water that exist on Earth?
Freshwater
Saltwater
Sugarwater
Bluewater
Humans can only consume (drink)
Freshwater
Saltwater
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