Podcast
Questions and Answers
Which phrase describes runoff?
Which phrase describes runoff?
- Underground water that flows into lakes
- River water that empties into an ocean
- Water from rain and snow that travels to streams (correct)
- Water from streams that flows into larger rivers
Which type of wetland is most likely found in warm, forested areas?
Which type of wetland is most likely found in warm, forested areas?
- Swamps (correct)
- Inland marshes
- Salt marshes
- Bogs
How do wetlands form?
How do wetlands form?
Groundwater comes to the surface and floods the land.
How do rivers become larger as they travel across land?
How do rivers become larger as they travel across land?
Which statements identify reasons to preserve wetlands? (Select all that apply)
Which statements identify reasons to preserve wetlands? (Select all that apply)
Why are plants unable to grow at the bottom of lakes?
Why are plants unable to grow at the bottom of lakes?
Which phrases describe groundwater? (Select all that apply)
Which phrases describe groundwater? (Select all that apply)
Which statement best describes the streams on either side of the Great Divide?
Which statement best describes the streams on either side of the Great Divide?
Which word identifies a large natural or human-made lake used to supply water?
Which word identifies a large natural or human-made lake used to supply water?
Which freshwater source is a permanent shallow body of water with plant life throughout?
Which freshwater source is a permanent shallow body of water with plant life throughout?
How does a pond form?
How does a pond form?
Where is most of Earth's fresh water found?
Where is most of Earth's fresh water found?
Which layer would a person drilling a well most likely reach after drilling through the unsaturated zone?
Which layer would a person drilling a well most likely reach after drilling through the unsaturated zone?
Which layer will become saturated first when rain falls?
Which layer will become saturated first when rain falls?
Which zone shows the water table?
Which zone shows the water table?
A farmer dug a well but did not find any water. Which reasons most likely explain why?
A farmer dug a well but did not find any water. Which reasons most likely explain why?
Which of these layers will the water move easily? (Select all that apply)
Which of these layers will the water move easily? (Select all that apply)
How deep will a city worker have to dig to reach the water table if the unsaturated zone is four feet thick and the saturated zone is five feet thick before reaching an impermeable layer?
How deep will a city worker have to dig to reach the water table if the unsaturated zone is four feet thick and the saturated zone is five feet thick before reaching an impermeable layer?
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Study Notes
Runoff
- Runoff is defined as water from rain and snow that travels to streams.
Wetlands
- Swamps are the type of wetland most commonly found in warm, forested areas.
Formation of Wetlands
- Wetlands form when groundwater comes to the surface and floods the land.
Rivers and Tributaries
- Rivers grow larger as tributaries combine, adding water to them.
Importance of Wetlands
- Wetlands filter water, store floodwaters, and provide animal habitats.
Plant Growth in Lakes
- Plants cannot grow at the bottom of lakes because sunlight does not reach that depth.
Groundwater Characteristics
- Groundwater plays a vital role as it feeds rivers, provides irrigation, and supplies drinking water.
Great Divide Streams
- Streams on either side of the Great Divide feed different watersheds.
Water Storage
- A reservoir is defined as a large natural or human-made lake used to supply water.
Ponds
- A pond is a permanent shallow body of water with plant life throughout.
Pond Formation
- Ponds form when water collects in a low-lying area.
Sources of Fresh Water
- Most of Earth's fresh water is found near the poles.
Drilling for Water
- The water table is typically reached after drilling through the unsaturated zone.
Saturation of Soil
- When rain falls, soil is the first layer to become saturated.
Groundwater Zones
- The second zone in the groundwater diagram shows the water table.
Farmer's Well Dilemma
- Farmers may fail to find water if the water table is deeper than the well or if the well is in an impermeable layer capping an aquifer.
Water Movement
- Water moves easily through rock, soil, and organic layers.
Digging to the Water Table
- To reach the water table, a worker would need to dig four feet, as the unsaturated zone is four feet thick.
Groundwater Source
- Water features on a hillside can indicate possible sources of groundwater if the surface is lower than the water table.
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