The Basics
The three states of water are ____, ____, and _____.
solid, liquid, gaseous
Water held underground in soil or rock
What is the only planet we know about that has a large amount of water
Earth
The process by which water circulates between the Earth's oceans, atmosphere, and land is called ____
the water cycle
a process where earth is worn away by water
erosion
Does the amount of water on earth change?
No! It is finite, which means it doesn't increase or decrease.
What is water in nature that has low amounts of salt called?
fresh water
contamination in the natural environment
pollution
Almost all the world's fresh water is in the form of ____ or ______.
ice or underground
What do we use fresh water for?
farming, industry, and/or human consumption
the rise and fall of the level of the ocean
the tide
What does sustainable mean?
Using natural resources in a way where we could keep doing it for a long time
Who is most affected by the scarcity of fresh water?
Countries with arid climates, that suffer from droughts
the total amount of water on a planet
hydrosphere
If the amount of water on earth doesn't change, why are we worried about using water resources?
We are worried about fresh water that we can be drink--with more people and pollution, we might run out of that kind of water!