Understanding Groundwater and Aquifers

What is groundwater?

• Water found in rivers and lakes

• Water found below Earth's surface

• Water that evaporates into the atmosphere

• Water used by organisms

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DOK Level 1: Recall

What is the role of gravity in the movement of water into the ground?

• It pushes water upwards

• It pulls water down into the ground

• It evaporates water

• It freezes water

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DOK Level 1: Recall

Explain the difference between permeable and impermeable layers.

• Permeable layers allow water to pass through, while impermeable layers do not.

• Impermeable layers allow water to pass through, while permeable layers do not.

• Both layers allow water to pass through.

• Neither layer allows water to pass through.

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DOK Level 2: Skill/Concept

What happens to water when it reaches an impermeable layer?

• It evaporates

• It continues to move deeper

• It gets trapped and cannot move deeper

• It turns into ice

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DOK Level 1: Recall

Describe how aquifers are formed.

• By the accumulation of water in impermeable layers

• By the accumulation of water in permeable layers above an impermeable layer

• By the evaporation of water from the surface

• By the freezing of water in the ground

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DOK Level 2: Skill/Concept

What percentage of Earth's freshwater supply is made up of groundwater?

• One tenth

• One fifth

• One third

• One half

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DOK Level 1: Recall

Why is groundwater important for human water needs?

• It is not important

• It provides a significant portion of freshwater supply

• It is used only for industrial purposes

• It is used only for recreational purposes

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DOK Level 2: Skill/Concept

Identify the materials that can form aquifers.

• Clay and silt

• Rock, sand, or gravel

• Metal and plastic

• Ice and snow

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DOK Level 1: Recall