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Презентация PowerPoint - MCMS Engineering Apps

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What are Natural Disasters?
Types of Natural Disasters
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Tornadoes
Hurricanes
Earthquakes
Volcanoes
Floods
Tsunamis
Winter Storms
Wildfires
The World is always changing.
Natural disasters are changes which are
so great they may cause damage to the
shape of the land or to the lives of people
and other living things.
Great changes happen deep inside the
Earth and on its surface. The changes on
the outer part of the Earth happen
because of different kinds of weather.
A tall column of air spinning
round very fast is a …
tornado
Tornadoes
• Rotating, funnel-shaped clouds from powerful
thunderstorms
• Winds up to 300 MPH capable of producing major damage
• More occur in the United States than anywhere else in the
world; they occur in every state in America.
• Related Websites:
FEMA for Kids
National Geographic: Nature’s Fury
Scholastic Weather Watch
National Geographic: Tornado Chasers
Tornado Preparation
• Visit this website for tornado safety
tips for home, school, outdoors, mobile
homes, and large buildings.
National Weather Service: Tornado!
Effects of Tornadoes in Alabama
Tuscaloosa County: December 16, 2000
Effects of Tornado in Joplin, MO
JHS Video Footage
Joplin Damage
Path
An extremely violent wind or
storm is a…
hurricane
Hurricanes
Massive severe storms occurring in the tropics
Winds greater than 75 MPH
Clouds & winds spin around the eye
Produce heavy rains, high winds, large waves, and
spin-off tornadoes
• Related Websites:
NOAA: Hurricanes
Tropical Twisters
National Geographic Kids – Hurricane!
BrainPop movie
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Hurricane Preparations
• Visit this website to learn more about
preparing for the effects of hurricanes
and tropical storms.
Hurricane Preparedness for Kids
Effects of Alabama Hurricanes
Hurricane Frederick - 1979
Hurricane Ivan 2005
A violent tropical storm in which the
air goes round and round is a …
cyclone
A shaking of the ground is an…
earthquake
Earthquakes
• Shaking caused by movements of plates in the
earth’s crust
• Occur along faults – borders between two
plates
• Occur most often along the Ring of Fire
• Related Websites:
• National Geographic: Earthquakes
• Exploratorium Faultline Project
• USGS: Earthquakes for Kids
Preparing for Earthquakes
• Visit this site to learn more about
earthquakes. Scroll down through the page
to discover valuable tips for earthquake
safety.
Weather Wiz Kids: Earthquakes
Volcanoes
• More than 500 active volcanoes in the world; over
half in the Ring of Fire
• Pressure builds below the earth’s surface
producing eruptions of lava, rock, and volcanic
gases
• Related Websites:
National Geographic Kids – Volcano!
Build a Volcano Activity
Volcano World Virtual Field Trips
Preparing for a Volcano
• Visit this site for safety tips before,
during, and after a volcano.
Weather Wiz Kids: Volcano Safety
A large amount of water that
covers an area is a …
flood
Floods
• Result from heavy rains
• May involve rivers overflowing, storm
surge/ocean waves, & dams or levees breaking
• Most common natural hazard
• Flashfloods = floods that happen very fast
• Related websites:
PBS: In Focus – Floods!
How TVA Stops Floods
Nova – Hot Science: The River’s Gift
Flood Preparations
• Visit this site to learn more about
floods, and scroll down to discover
important flood safety tips.
Weather Wiz Kids – Rain and Floods
A huge wave caused by an
earthquake which flows onto land
is a …
tsunami
Tsunamis
• Form as a result of earthquakes, volcanoes, or
landsides under the ocean
• Waves grow taller as they reach the coast
• Four out of Five occur in the Ring of Fire
• Over 200,000 people killed in the 12/26/05 Indian
Ocean tsunami
• Related Websites:
National Geographic Kids – Killer Wave!
Pacific Tsunami Museum – Student Corner
PBS – Savage Earth: Tsunamis
Tsunami Preparedness
• Visit this website for important tips for
surviving a tsunami.
FEMA Hazards Fact Sheets: Tsunami
Effects of Tsunamis
Indian Ocean Tsunami – December 26, 2005
A large mass of snow falling down
the side of a mountain is an…
avalanche
Winter Storms
• May include snow, ice storms, sleet, freezing rain,
and extremely cold temperatures
• Most deaths occur in automobiles
• Storms may cause widespread power outages
• Related Websites:
National Weather Service: Winter Storms
Risk Watch: Severe Winter Storms
Scholastic – Winter Storms
Winter Storm Preparations
• Visit these sites for tips on how to
prepare for a winter storm.
CDC: Winter Storm Facts
Winter Storm Fact Sheet
A period of time with no rain is a …
drought
Heat Wave
• Prolonged period of
excessively hot weather
which can be
accompanied by high
humidity.
• Severe heat waves have
caused catastrophic crop
failures, thousands of
death and widespread
power outtages.
Wildfires
• Occur in forests, grasslands, and wooded areas
• Most common causes: lightning and human
accidents
• Burn more than 4 million acres in the U.S. each
year
• Related Websites:
Smokey Bear: Kids
National Geographic: Wildfires
Dialogue for Kids – Wildfire Facts
Preparing for Wildfires
• Visit this site to learn important tips
for protecting your family and home
during a wildfire.
Risk Watch: Wildfires
Famine
• Extreme scarcity of
food.
Disease
• An abnormal condition
that affects the body of
an organism. It is often
constructed as a
medical condition
associated with specific
symptoms and sings.
Can originate from
external source
(infectious disease).
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