Show:
Freshwater
Using Freshwater
Freshwater Depletion
Water Pollution 1
Water Pollution 2
100
97.5% (Lesson 1)
What percentage of the Earth's water is saltwater?
100
Majority of water usage in the world
What is agriculture use?
100
Process of turning seawater to freshwater
What is desalination?
100
Type of pollution that comes from a specific place
What is point-source solution?
100
Because of global warming, water becomes warmer, which can alter ecosystems.
What is thermal pollution?
200
79% (Lesson 1)
What percentage of freshwater comes from ice?
200
Structure that blocks the flow of water and provides a way store water (lesson 2)
What is a dam?
200
How desalination occurs.
What is boiling seawater causing it to evaporate, leave salt behind, condensing water vapor by cooling it and collecting the fresh water after?
200
Type of pollution that comes from different sources (lesson 3)
What is nonpoint-source pollution?
200
Cholera enters the water supply and causes deadly diarrhea
What is a pathogen? OR what is biological pollution?
300
Found on the Earth's surface (Lesson 1)
What is surface water?
300
Negative effects of building a dam (lesson 2)
What are "habitat alteration, decline of fisheries, and capturing of sediment?"
300
Agriculture solution to freshwater depletion
What is placing crops that need a lot of water in places with adequate rainfall? OR What is drip irrigation (reduces water lost to evaporation)?
300
When nutrients such as phosphorus build up
What is eutrophication?
300
sets standards for pollution levels in water. Most important law to prevent water pollution.
What is the Clean Water Act of 1977?
400
Includes all the land area that supplies water to a particular river system (Lesson 1)
What is a watershed?
400
The reason why irrigation is inefficient
Why is a lot of water lost to runoff and evaporation?
400
Industrial solutions to freshwater depletion
What is recycling used freshwater?
400
How eutrophication harms aquatic ecosystems
What is algal blooms (caused by excess nutrients leading to a sudden explosion of algal growth)?
400
how septic systems work (lesson 3)
What is sewage entering the system through a pipe while bacteria break down wastes, denser wastes settle down to the bottom, less dense water build up at the top of tank while scum is pumped out regularly, and water travels down to a gravel field through an outlet pipe?
500
Water can easily pass through Water cannot pass through
What is permeable? What is impermeable?
500
Build up of salts in surface layers of soil
What is salinization?
500
Places where water is stored underground
What is an aquifer?
500
How chemical pollution happens
What is releasing chemicals such as Bisphenol-A, arsenic, lead, and mercury do to water ecosystems?
500
During water treatment, this chemical process kills potentially pathogenic organisms?
What is chlorination?