Groundwater

Porosity refers to...

• the shape of the particles
• The sorting of the particles
• % of pore space in a material
• % of cement in a material

Impermeable materials...

• have an abundance of pores.
• let water in.
• have little to no pores.

The boundary between the zone of aeration and the zone of saturation is called the...

• well
• recharge zone
• the water table
• watershed

Which of the following has the lowest porosity?

• Clay
• Silt
• Gravel
• Sand

How much of our freshwater is groundwater?

• 17%
• 21%
• .31%
• 0.4%

Water flows through permeable materials ____________________ than impermeable materials.

• slower
• faster

The ___________________ the grain size, the faster the water will move through the soil.

• more mixed
• smaller
• larger

A hole dug into an aquifer to reach groundwater is called... 

• an aquitard/aquiclude
• a well
• a recharge zone
• a water table

This type of rock allows water to flow through it and recharge an aquifer

• impermeable
• permeable
• water table
• non-porous

 96.5% of all water can be found...

• in oceans
• in glaciers
• in the ground
• in the atmosphere