Streams and small rivers that feed into main rivers.
What are tributaries?
100
The term for materials that allow water to pass through them easily.
What is permeable?
100
Using less water is one way to practice this.
What is water conservation?
100
The main cause of water pollution from farms.
What is fertilizer entering bodies of water?
100
The percentage of fresh water on Earth's surface
What is 3%?
200
The land that supplies water to a river system.
What is a watershed?
200
An underground layer of rock or sediment that holds water.
What is an aquifer?
200
This indoor use of water consumes the most water per day.
What is flushing the toilet?
200
Specific sources of pollution that can be identified.
What are point sources?
200
Water that falls to Earth as Rain, Sleet, Snow, or Hail
What is Precipitation?
300
A lake that stores water for human use.
What is a reservoir?
300
The process of supplying water to areas of land to make them suitable for growing crops.
What is irrigation?
300
The step of the water cycle that most contributes to pollution of our rivers.
What is runoff?
300
This process produces rain.
What is condensation?
400
The Florida Everglades are an example of this.
What is a freshwater marsh?
400
A well in which groundwater rises due to pressure.
What is an artesian well?
400
The primary use of freshwater in the United States.
What is agriculture?
400
The step in the water cycle that contributes to groundwater pollution.
What is infiltration?
400
The three major steps of the water cycle.
What are precipitation, evaporation, condensation?
500
As water moves through this natural filter, wastes are settled out , some wast is absorbed by plants, and silt and mud are trapped through plant roots.
What is a wetland?
500
The area to which wells must be drilled in order to reach water.
What is an aquifer?
500
The amount of water on Earth is __________________.
What is constant?
500
The process of adding any substance that has a negative effect on water.