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Natural Hazzards
2nd Science Unit
25
Science
Not Applicable
09/15/2005

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Cards

Term
Catastraphic
Definition
relating to an event that brings terrible loss or lasting distress
Term
Eruption
Definition
the process of releasing something with violence
Term
Force
Definition
a push or a pull on an object
Term
Pressure
Definition
the force that something exerts over a given area
Term
Equilibrium
Definition
a state in which opposing forces in a system are equally balanced or stable
Term
Natural Hazzard
Definition
an event that results from Earth processes and that can cause damage and endanger human life
Term
Hurricane
Definition
winds traveling in two different directions meet and create a spinning weather system over tropical ocean waters fueled through contact with warm ocean water
Term
Landslide
Definition
a very destructive kind of mass movement which occurs when rock and soil slide quickly down a steep slope
Term
Mudflow (mudslide)
Definition
rapid downhill movement of a mixture of water, rock, and soil; occur after heavy rains in a normally dry area or after an earthquake
Term
Tornado
Definition
small, spinning column of air that has high wind speeds and that touches the ground; occurs when cold, dry air meets warm, moist air
Term
Tsunami
Definition
huge surface waves created by earthquakes under water
Term
Drought
Definition
an extended period where water availability falls below the requirements for a region
Term
Flood
Definition
heavy rains or sudden melting of snow cause large amounts of water to enter a river system or an area where drainage is not adequate and cause an overflow of water
Term
Earthquake
Definition
rock beneath Earth's surface moves and creates stress in the rock; stress causes rock to break or change shape releasing energy in the form of vibrations
Term
Wildfire
Definition
a fire in the forests that could be caused by lighting or human activity
Term
Storm Surge
Definition
water that is pushed toward the shore by the force of the winds swirling around the storm
Term
Hurrican Warning
Definition
hurrican conditions are likely for a location within 24 hours
Term
Hurrican Watch
Definition
hurrican conditions are likely for a location within 36 hours
Term
Humans are _ which causes _.
Definition
building in storm surge areas...increase in cost of damages
Term
Humans are _ which causes _.
Definition
making mobile homes unableto withstand high winds...the ability for tornados to be able to pick them up
Term
Humans are _ which causes _.
Definition
putting mobile homes in flood plains...mobile homes to be more vulnerable to floods
Term
Humans are _ which causes _.
Definition
constructing levees and canals in marshes and other coastal wetlands...storm surges to hit harder and the soil the wetlands kept down to blow away
Term
Humans are _ which _.
Definition
causing global warming...intensifies hurricanes
Term
Humans endanger themselves by building there homes...
Definition
1. at the base of volcanos
2. in earthquakes zones
3. in coastal regions
4. in arid forests or other arid regions
Term
concrete buildings cause
Definition
loss of natural drainage patterns
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