Show:
water cycle
water treatment
water quality
fresh water
salt water
100
Drives the water cycle
What is the sun
100

The final step in water treatment where chemicals like chlorine are added to kill any potentially harmful pathogens that remain.

What is disinfection

100

The measure of the cloudiness of the water

What is turbidity

100
The amount of the water on earth that is fresh
What is 3%
100
% of earth's water that is salty/ocean
What is 97%
200
describes water that goes from a liquid to a gas (water vapor)
What is evaporation
200

The step where water passes through filters of sand, coal, or activated carbon to remove smaller particles.

What is filtration

200
type of pollution that you know the source of
What is point source
200
The land around a river or stream that drains into it.
What is a watershed or river basin is acceptable also
200

wind-driven motion of dense, cooler, and usually nutrient-rich water towards the ocean surface

What is an upwelling

300
rain, sleet, snow, and hail are examples of this form of water
What is precipitation
300

The step where larger particles settle out to the bottom and are removed.

what is sedimentation
300
type of pollution you do not know the source of
What is non-point source
300
the source of most of our drinking water from
What is ground water
300
area that is exposed to the air at low tide and submerged at high tide
What is intertidal zone
400
what water does when it forms a cloud
What is condense or condensation
400

The addition of chemicals like iron or alum that cause waste pieces to first start binding together with dirt in the water

What is coagulation

400
examples of this are runoff from homes, pesticides, oil, fertilizer
What is non-point source pollution
400
a porous, water-saturated layer of sand, gravel, or bedrock through which groundwater flows
What is an aquifer
400
bodies of water along our coasts that are formed when freshwater from rivers flows into and mixes with saltwater from the ocean.
What is an estuary
500

recharging of water from the surface to the ground

What is infiltration

500

The step of slowly mixing and causing particles to clump and form larger pieces called flocs that can settle out.

What is flocculation

500

How are water temperature and dissolved oxygen related?

As temperature increases, dissolved oxygen decreases and vice versa

500
Most of the earth's freshwater is not actually usable...why not.
What is frozen in glaciers
500

What causes deep ocean currents?

What is density differences