Transcript Natural Disasters

Catastrophic
Event
Catastrophic Event
• An event that results from Earth
processes and that can cause damage
and endanger human life
– Tornado
– Earthquakes
– Floods
– Wildfire
Hurricane
Tsunamis
Volcanoes
Drought
Tornado
http://www.neok12.com/php/watch.php?v=zX794263614f685363004751&t=
Natural-Disasters
Tornado
• Cause – cold and warm air colliding
when thunderstorms meet
• Impact to Earth – kills plants, damages
topsoil
• Impact to People – high winds destroy
buildings, can have flooding
Hurricane
http://www.neok12.com/php/watch.php?v=zX4b0975500358
4b5759007f&t=Natural-Disasters
Hurricane
• Cause – air pressure differences over
the ocean
• Impact to Earth – kills plants, destroys
beaches
• Impact to People – high winds destroy
buildings, can have flooding
Tsunami
http://www.neok12.com/php/watch.php?v=zX53095a467b67
7a5e0c7e0a&t=Natural-Disasters
Tsunami
• Cause – earthquake under the ocean
floor
• Impact to Earth – destroys beaches and
coral reefs
• Impact to People – large loss of life,
destroys buildings
Volcano
http://www.neok12.com/php/watch.php?v=zX4762460453
7c4154525151&t=Natural-Disasters
Volcano
• Cause – build up of pressure deep
inside Earth
• Impact to Earth – burns plants, creates
new land
• Impact to People – burns or covers
buildings
Earthquake
http://www.neok12.com/php/watch.php?v=zX06611b0305665
1036a0141&t=Natural-Disasters
Earthquake
• Cause – moving tectonic plates
• Impact to Earth – changes the look of
the land
• Impact to People – damages buildings,
kills people
Drought
http://video.nationalgeographic.com/video/environment/envir
onment-natural-disasters/landslides-and-more/droughts/
Drought
• Cause – lack of rain, heat
• Impact to Earth – kills plants and
animals
• Impact to People – money loss from
crop and livestock damage
Wild Fire
http://video.nationalgeographic.com/video/environment/enviro
nment-natural-disasters/landslides-and-more/wildfireresearch/
Wildfire
• Cause – lightning, can be man-made
• Impact to Earth – burns everything,
fertilizes the soil
• Impact to People – destroys everything
in it’s way
Flood
http://video.nationalgeographic.com/video/environment/enviro
nment-natural-disasters/landslides-and-more/floods/
Flood
• Cause – too much rain
• Impact to Earth – changes the land,
fertilizes the soil
• Impact to People – loss of life and
buildings
Avalanche
http://www.neok12.com/php/watch.php?v=zX455b4404645e
15620c6402&t=Natural-Disasters
Avalanche
• Cause – too much snow and a steep
slope
• Impact to Earth – changes the land,
destroys plant life
• Impact to People – loss of life and
buildings
•
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