Water Basics
97%
What is the % of saltwater on Earth?
Cohesion causes this "skin" on the water
What is surface tension?
The boundary of a river basin.
What is a watershed divide?
Adhesion is why water beads up on glass
False. What is cohesion?
Freshwater and saltwater mix here.
What is an estuary?
Groundwater
What is water stored underground?
Water moving down through soil/rock
What is percolation?
Water moving down into soil is called
What is infiltration?
If you dig deep enough, the watershed is where you find water
False. What is the water table?
Nurseries and storm protection
What are characteristics of estuaries?
Adhesion
What allows water to stick to other surfaces?
This makes up most of Earth's usable water
What is groundwater?
Water collects underground in this
What is an aquifer?
An estuary supplies water to wells and springs
False. What is an aquifer?
Water with the most dissolved salts
What is ocean water?
Cohesion
What property makes water molecules stick together?
Excessive nutrients cause death to animal life in bodies of water
What is eutrophication?
The top of an aquifer is known as
What is a water table?
Freshwater is found in lakes, rivers, and streams
False. What is surface water?
A mix of salt and fresh water
What is brackish water?
These keep a lot freshwater frozen and unavailable
What are glaciers and ice caps?
Deforestation (cutting down trees), pollution, and urbanization, to name a few
What are threats to the water cycle?
Location and permeability makes this a vital source of fresh water for humans and ecosystems
What is an aquifer?
Polarity is the reason water can dissolve most substances.
True. Water has a positive and a negative end, like a magnet.
They protect and feed many species of plant and animal
What are estuaries?