Properties of Water
Approximately what percent of the Earth's water is fresh water?
Approximately 3%
What sources of energy drive the water cycle?
The sun and gravity
A divide
Upper boundary or surface of groundwater
water table
Most of the water on Earth is freshwater.
False
Draw a water molecule and label all parts of it.
Two Hydrogen atoms with positive charges attached to one Oxygen atom with a negative charge.
Contrast the words evaporation, transpiration, sublimation and condensation. Provide a short definition for each.
Evaporation - liquid water becoming water vapor
Transpiration - water inside plants becoming water vapor
Sublimation - solid water (ice) becoming water vapor
Condensation - water vapor becoming liquid water
Water moves under the earth's surface to fill in open spaces in rocks or soil. What is this type of water called?
groundwater
stream load
A recharge zone is where water seeps into the ground, reaches the water table, and enters the aquifer.
What are the four characteristics of water that result from it being a polar molecule?
Energy and Matter
The process of the water table rising and groundwater becoming surface water is called:
Discharge.
A body of rock or sediment that stores groundwater
aquifer
There is more fresh surface water than fresh groundwater.
List the four main roles of water on Earth.
Influencing Weather, Shaping Earth's Surface, Human Activities, Supporting Life
When going from a liquid to a gas, is energy absorbed or released?
Energy is absorbed because it requires a lot of energy for hydrogen bonds to be broken so that water molecules can break apart from each other.
Compare and contrast the words porosity and permeability.
Porosity - the amount of open space in an aquifer amidst the other rocks and debris.
Permeability - the ability for water to flow freely through rocks and debris to enter into the groundwater.
watershed
Condensation, the process of water vapor becoming liquid water, results from water vapor being cooled and therefore forming droplets.
True
What is polarity and what parts of a water molecule make it polar? Answer BOTH parts of the question!
Polarity is when atoms with opposite charges bond to form a molecule. Water is polar because the positive Hydrogen atoms are attracted to the negative Oxygen atoms.
What is the main role of plants in the water cycle?
To release water vapor into the air/ atmosphere through transpiration.
After precipitation, how does water become part of the aquifer?
Infiltration
measure of change in elevation
gradient
It takes a LOT of energy for liquid water or solid water to become water vapor.
True.