Holt Environmental Science

As streams and rivers cross land, they form a flowing network of water called a 

• Groundwater
• River system.
• Floodgate
• Recharge zone

Water beneath the Earth’s surface in sediment and rock formations is known as 

• Seawater
• groundwater
• Fresh water
• potable

An underground system that contains groundwater is called an 

• Groundwater
• River system
• Aquifer
• Recharge zone

________________is the percentage of the total volume of rock that has spaces (pores).

• Recharge zone
• Aquifer
• Porosity 
• Pathogens

The ability of rock or soil to allow water to flow through it is called 

• Permeability
• Surface water
• Recharge zone
• Pathogens

Water that is safe to drink is called 

• Permeable
• Sea water
• Potable
• Passable

An area of the Earth’s surface from which water percolates down into an aquifer is called a

• Surface water
• Recharge zone
• Potable
• Dam

The area of water that is drained by a river is known as a (hint: ours is the Chesapeake Bay)

• Flood plain
• Delta
• Surface water
• watershed

Water that is used around the house.

• Domestic Water
• Industrial Water
• Agricultural Water
• Wastewater 

What percent of water on earth is salt water?

• 79%
• 3%
• 97%
• 77%