Properties of Water
What is surface water
water found on the surface or top of earth surface
What is a surface current?
movement of water across the ocean surface
What is water supply?
availability of water
What is cohesion?
the property that holds molecules together
what is groundwater?
water below earth's surface
What is a deep current
movement of water deep below the ocean surface
What is water quality?
how clean or polluted the water is
What is adhesion?
property that holds molecules of different substances together
Explain watershed
an area of land drained by a river system
What 3 factors power or create surface currents
Sun heats the air, Air creates pressure, Pressure creates wind
What is the difference between point source and non-point source pollution
point source comes from specific site, non-point source comes from many small sites (hard to trace)
Why does ice float in water?
ice is less dense than water. Molecules spaced out
What is an Aquifer?
an area of underground rock that stores freshwater
What 3 Factors affect surface currents?
Continental Deflection, Coriolis Effect, Global Winds
What are three types of water pollution?
Thermal, Chemical, Biological, Eutrophication
What is water's main roles on earth?
Weather, Shaping Earth Surface, Supporting Life, Supporting human activities
What is sublimation?
process of solid straight to a gas (dry ice)
Explain both discharge and recharge
Recharge- water becoming groundwater by seeping into the ground
Discharge- groundwater becoming surface water
How do convection currents transfer energy?
The sun heats the water near the equator and transfers heat to the north and south pole creating a conveyor motion in the ocean
How does water get to our faucets?
Water supply systems- treatment facilities to pipes
Changing Water Flow- dams and reservoirs stopping the flow of freshwater