Water Types
What type of water contains a large amount of dissolved salt?
Salt Water
Where is most of Earth's water found?
Oceans
What is groundwater?
Water stored beneath Earth's surface in soil and rock.
What is the difference between freshwater and saltwater?
Freshwater contains very little dissolved salt, while saltwater contains more salt.
Which type of water do humans need for drinking: freshwater or saltwater?
Freshwater
Is the water in most oceans freshwater or saltwater?
saltwater
Most of Earth's freshwater is stored in which two places?
Glaciers and ice caps
What is an aquifer?
An underground layer of rock or sediment that stores and allows water to flow through it.
Which contains more freshwater: lakes and rivers or glaciers and ice caps?
Glaciers and ice caps.
A student leaves the water running while brushing their teeth. What is one way they can conserve water?
Turn off the faucet while brushing.
Name two places where freshwater can be found.
Glaciers, ice caps, lakes, rivers, groundwater, or streams.
Name two ways humans use freshwater.
Drinking, cooking, bathing, farming, or cleaning.
Which of these is a freshwater source: ocean, glacier, or seawater?
Glacier.
Why is most freshwater stored in glaciers and ice caps difficult for people to use?
It is frozen, often in places far from where people live.
A community gets drinking water from an underground aquifer. What type of water source is it using?
Groundwater.
What percentage of Earth's water is Saltwater?
97%
A student finds water in a lake and water in the ocean. Which one usually contains less dissolved salt?
The lake water.
A scientist is studying a large body of water that contains very little dissolved salt. What type of water is the scientist studying?
Freshwater
A student says most of Earth's freshwater is found in rivers. Is the student correct? Explain.
No. Most freshwater is stored in glaciers, ice caps, and groundwater. Only a small amount is in rivers and lakes.
What could happen to sea levels if large amounts of ice from polar ice caps melt?
Sea levels can rise.
What percentage of Earth's water is freshwater?
About 3%.
Most of Earth’s freshwater is found in glaciers, ice caps, and what other major source?
Groundwater.
What is a major difference between surface water and groundwater?
Surface water is found on Earth's surface, such as in lakes and rivers. Groundwater is stored beneath the surface.
Why can freshwater be considered a limited resource even though Earth has a lot of water?
Most water is salty, and much of the freshwater is frozen or stored underground, making only a small amount easily available for use.
What could happen if pollution gets into a freshwater source, such as a lake or river?
The water could become unsafe for people, plants, and animals to use.