2.9 Porosity and Permeability

Lesson - Porosity and Permeability

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Porosity is

the capacity of a rock to transmit fluid.

the ability of a rock to prevent water from entering it.

the percentage of a rock's volume that is open space.

none of the above

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Permeability is

the capacity of a rock to transmit fluids.

the ability of a rock to prevent water from entering it.

the percentage of a rock's volume that is openings.

none of the above

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Which will have a higher infiltration rate?

Clay

Pebbles

Sand

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When rainfall occurs, the rainwater will most likely become surface runoff if the land surface is

Impermeable

Nearly flat

sandy

covered with grass

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Water will enter the soil if the ground surface is

impermeable and unsaturated

impermeable and saturated

permeable and saturated

permeable and unsaturated

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Which condition is most likely to cause surface runoff during a rainstorm?

The permeability of the soil is greater than the rate ofrainfall

The surface soil is saturated.

The surface slope allows for maximum infiltration.

The porosity of the soil is greater than the amount ofrainfall.

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Is it possible for a material to be highly porous but impermeable (not permeable)?

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How can a solid rock become permeable?

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Look at the image above. It shows the amount of time it takes for water to pass through each of the substances. Why does it take longer for water to move through clay than it does gravel?

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2.9 Porosity and Permeability

Porosity is

Permeability is

Which will have a higher infiltration rate?

When rainfall occurs, the rainwater will most likely become surface runoff if the land surface is

Water will enter the soil if the ground surface is

Which condition is most likely to cause surface runoff during a rainstorm?

Is it possible for a material to be highly porous but impermeable (not permeable)?

How can a solid rock become permeable?

Look at the image above. It shows the amount of time it takes for water to pass through each of the substances. Why does it take longer for water to move through clay than it does gravel?

Look at the image above. Which one of the 4 tubes has a higher permeability? How do you know?

Porosity is

Permeability is

Which will have a higher infiltration rate?

When rainfall occurs, the rainwater will most likely become surface runoff if the land surface is

Water will enter the soil if the ground surface is

Which condition is most likely to cause surface runoff during a rainstorm?

Is it possible for a material to be highly porous but impermeable (not permeable)?

How can a solid rock become permeable?

Look at the image above. It shows the amount of time it takes for water to pass through each of the substances. Why does it take longer for water to move through clay than it does gravel?

Look at the image above. Which one of the 4 tubes has a higher permeability? How do you know?