Show:
Water on Earth
Surface Water
Water Underground
Freshwater Resources
Miscellaneous
100
Earth's water is naturally recylced through this process.
What is the water cycle.
100
Streams or smaller rivers that feed into a larger river.
What are tributaries.
100
An underground layer of rock or sediment that holds water.
What is an aquifer.
100
Name two ways to conserve water at home.
What is accept multiple answers. See page 416 in text.
100
A measurement of the substances in water besides water molecules.
What is water quality.
200
The process where water transforms from a liquid to a gas.
What is evaporation.
200
These are smaller and shallower than lakes.
What are ponds.
200
Name one type of impermeable rock.
What is clay or granite, volcanic rocks suchas obsidian. Accept appropriate answers.
200
The addition of any substance that has a negative effect on water or the things that depend on water.
What is pollution?
200
Which ofthe following activities results in the most water water usage: Flushing the toilet, washing dishes, or takingashower?
What is taking a shower.
300
The process by which water is transformed from a gas to a liquid.
What is condensation.
300
Describe two ways a lake can be formed.
Accept multiple answers.
300
The top of the saturated zone is called this.
What is the water table.
300
Name an example of nonpoint source pollution.
What is accept multiple answers.
300
What is pH ofpure water?
What is 7.
400
What percent of Earth's water is freshwater?
What is 3%.
400
Where are bogs located?
What are cooler, northern areas.
400
Explain how a well that was once working may dry up.
What is the water table may fall below the bottom of the well.
400
More water is used globally for this than any other use.
What is agriculture.
400
The bacteria found in human and animal waste.
What are coliform bacteria.
500
Where most of the world's freshwater is located.
What is the polar icecaps.
500
What is the difference between a marsh and a swamp.
What is swamps contain woody plants and marshes contain grasses and mosses.
500
What is the difference between an artesian well and an geyser.
What is the pressure that forms from an artesian well is formed from water being trapped between two layers of impermeable rock. The pressure underground from a geyser results from water being heated by magma.
500
Most of the water used for irrigation is lost to this.
What is evaporation.
500
The presence of which two minerals determine water hardness.
What is calcium and magnesium.