Structure of Water
What is the chemical formula for water?
H2O (double jeopardy)
What process changes water from liquid to gas?
evaporation
A ___________is an area where all water drains into the same location.
Watershed
What causes surface currents to change directions?
continental deflection and the Coriolis Effect
What does water quality measure?
How good or bad the water is
Because water has a slight positive and negative side, it is called a _______ molecule
What is polar
What process forms clouds?
condensation
What is the high point that separates one watershed from another called?
Divide
What makes the surface of the ocean move?
The wind.
What organization monitors and ensures good water quality in the U.S.?
EPA
What property allows water to stick to other surfaces?
What process returns water to Earth as rain or snow?
Precipitation (double jeopardy)
The Swan Creek flows into the Maumee River, which drains into Lake Erie. Therefore, Swan Creek is a _______ of the Maumee River.
tributary
What causes deep ocean currents to move?
differences in density due to temperature and salinity
Toledo residents once couldn’t drink their water due to toxins from algae. What caused this?
Fertilizer runoff caused algae to grow — eutrophication
What property allows water to stick to itself?
What is cohesion
What provides energy that drives the water cycle?
The sun
What happens to the water table during a drought
It drops
What is upwelling and what does it do??
Cold, nutrient-rich water rising from deep ocean layers this supports aquatic life
Name two types of water pollution.
Biologic, eutrophication, chemical, or thermal
Why is water called the universal solvent?
Because it can dissolve polar substances
What process releases water vapor from plants?
Transpiration
What is the term for the area where water leaves an aquifer. (example: Spring or well)
What is a discharge zone (double jeopardy)
What could happen if upwelling stops?
Fish populations may decrease due to lack of nutrients and people who rely on those fish will have to find another food source.
What are two main threats to our water supply?
Overuse, urbanization, leaky pipes, or droughts.