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Earth's waters
Ms. Smith's
45
Science
8th Grade
03/06/2007

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Cards

Term
Permiable
Definition
water can pass through
Term
Impermiable
Definition
water can NOT pass through
Term
Water Table
Definition
top of the saturated zone
Term
Zone of Aeration
Definition
above water table, unsaturated
Term
Confined Aquifer
Definition
aquifer between two layers of imperiable rock
Term
Unconfined Aquifer
Definition
aquifer between two impermiable layers
Term
Artesian Well
Definition
doesnt need pumped, worls with pressure
Term
Spring
Definition
water seeping through cracks and crevises
Term
Water Molecules
Definition
2 positive hydrogen atoms bonded to one negitive oxygen atom
Term
hydrogen bond
Definition
bond between water molecules
Term
Polar
Definition
2 opposite ends attracted
Term
Cohesion
Definition
water molecules bonding (like molecules)
Term
Adhesion
Definition
water, paper and ink bonding (different molecules)
Term
Specific Heat
Definition
temperature object can sustain before becoming heated
Term
2nd step in the water filtration process
Definition
Coagulation- the tickening of water, adds flocks
Term
1st step in the water filtration process
Definition
1st Filtration- takes out all large debree
Term
3rd step in the water filtration process
Definition
2nd filtration- sand or gravel used to filer water
Term
4th step in the water filtration process
Definition
chlorination- chlorine is added to kill bacteria
Term
5th step in the water filtration process
Definition
Aeration- bubbling air through water, takes out odor
Term
6th step in the water filtration process
Definition
Additional Treatment- Sodium or lime fluid added
Term
Non- Point Source
Definition
general, scattered
Term
Point Source
Definition
point out easily, exact
Term
Main Sources of Waste
Definition
1. Human
2. Agricultural
3. Industrial
4. Run-off
Term
Bouyant Force
Definition
Able to float
Term
What bodies of water make up a river system?
Definition
Main Channel,
Tributaries,
Head Waters,
Mouth,
Ocean or Lake
Term
The land area that supplies water to a river syatem is call a ___________.
Definition
Water Shed
Term
Water that flows over a ground system is called a _________.
Definition
Surface run-off
Term
How does a river's volume change at the head waters and mouth?
Definition
There is more water at the mouth than at the head.
Term
How does a river's volume change at the head waters and mouth?
Definition
There is more water at the mouth than at the head.
Term
Would Point D or E be better place to to dig a well? Give a reason for your choice.
Definition
-E, the well won't hit anything
Term
At which location could you obtain ground water without having to pump it up?
Definition
Artesian Well, Point C, because it would fill up B.
Term
At which location could you obtain ground water without having to pump it up?
Definition
Artesian Well, Point C, because it would fill up B.
Term
use a differernt color of blue to show how this area might look different during a very rainy season.
Definition
it would fill up B, the water table rise, bc there is more water.
Term
what accounts for the attraction between water molecules?
(Cohesion or Adhesion)
Definition
Cohesion- Like molecules will bond through hydrogen bonds.
Term
Describe the arrangment of atoms in a water molecule. What makes it a polar molecule?
Definition
Hydrogen (positives), Bonded to Oxygen (negative)
Term
what unusual fact about ice causes it to float in water?
Definition
It is frozen, which makes it lighter and less dense.
Term
How does water rise from the roots of a redwood tree to the branches at the top?
Definition
Cappillary action- Adhesion
Term
how do insects walk on water?
Definition
the weight of an insect is less than the density of the water
Term
Why does sugar dissolve well in water?
Definition
Sugar is a universal solvent
Term
water quality Temperature
Definition
depends on depth of water
Term
water quality turbiclity
Definition
muddiness of water
Term
water quality dissolved oxygen
Definition
amt of oxygen dissolved in water
Term
water quality Acidity/Alkalinity
Definition
measured in PH, indicates algea level
Term
water quality Nitrates
Definition
causes plants and algea to grow, eutrophication
Term
water quality Coliform
Definition
Used as indicator for harmful bacteria and parasites
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