1 / 33

Courtney Sparver Educ 462- Computers for Classroom Teachers 11/30/10 2 nd grade Science

Natural Disasters. Courtney Sparver Educ 462- Computers for Classroom Teachers 11/30/10 2 nd grade Science Cns5173@psu.edu Dr. Coffman. What is a natural disaster?. Video. A physical natural event that kills people or overwhelms local capacity for damage control or recovery .

nau
Télécharger la présentation

Courtney Sparver Educ 462- Computers for Classroom Teachers 11/30/10 2 nd grade Science

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Natural Disasters Courtney Sparver Educ 462- Computers for Classroom Teachers 11/30/10 2ndgrade Science Cns5173@psu.edu Dr. Coffman

  2. What is a natural disaster? Video A physical natural event that kills people or overwhelms local capacity for damage control or recovery.

  3. Types of Natural Disasters Hurricanes Earthquakes Volcanoes Tornadoes Avalanches Tsunamis

  4. Hurricanes • A hurricane is a huge storm! • Can be up to 600 miles across and have winds traveling 75 to 200 mph. • A hurricane usually lasts for over a week moving 10-20 mph over the ocean. • The heavy rain, strong winds and large waves can damage buildings, trees and cars if a hurricane comes on land. • Hurricanes gather heat and energy when they come in contact with warm ocean waters.

  5. What is the eye of a hurricane? • Hurricanes rotate in a counter-clockwise direction around the eye. • The eye is the center of the storm. • The eye is the calmest part of the hurricane. • The eye contains light winds and fair weather.

  6. How do Hurricanes form?

  7. What is a storm surge? • Storm surges are the most devastating element of a hurricane. • As a hurricane’s wind spirals around the storm, they push water into a mound at the storm’s center. • The mound of water causes flooding when the storm reaches land. • The water is forced to escape on land which causes flooding.

  8. Shallow- water coastline Deep-water coastline

  9. HURRICANE DESTRUCTION

  10. Earthquakes • Earthquakes are the shaking, rolling, or sudden shock of the earth’s surface. • Usually last less than one minute. • More than a million earthquakes shake the earth each year. • Earthquakes cannot be predicted.

  11. Plate tectonics is a theory of continents breaking apart, colliding and grinding against each other. • If the plates crash together or pull apart an earthquake can occur. • When the plates along the surface of the earth squeeze or stretch, huge rocks form at their edges. • The rocks shift with great force, causing an earthquake.

  12. How do we measure earthquakes? Seismograph Richter Scale An instrument used for recording the strength of an earthquake and how long it lasted. A scale used to measure an earthquakes intensity.

  13. EARTHQUAKE DESTRUCTION

  14. Volcanoes • A volcano is a mountain that opens downward to a pool of molten rock below the earth. • Eruptions occur when the pressure builds up. • Gases and rock shoot up through the opening and spill over. • Volcano eruptions are capable of knocking down an entire forest!

  15. HOW MANY VOLCANOES ARE THERE? • There are more than 1500 active volcanoes on the Earth. • 80 or more volcanoes are under the oceans. • Active volcanoes are mainly found in Hawaii, Alaska, California, Oregon and Washington.

  16. What are the types of volcanoes? Cinder cone Composite Shield Lava

  17. Ring of Fire • An area of frequent volcanic eruptions surrounding the basin of the Pacific Ocean. • Includes 452 volcanoes and over 50% of the worlds active volcanoes.

  18. Volcanic Destruction

  19. Tornadoes • A tornado is a violent rotating column of air extending from a thunderstorm to the ground. • Tornado's can form wind speeds up to 300 mph. • They can destroy buildings, toss cars hundreds of yards and pull trees out of the ground. • Damage paths can be from one mile wide to 50 miles long. • 1,000 tornadoes are reported nationwide in one year.

  20. How do tornadoes Form? The wind speed increases and direction changes which creates an invisible, horizontal spinning effect in the lower atmosphere. Warm, moist air combines with cool, dry air creating instability in the atmosphere. Rising air tilts the rotating air from horizontal to vertical.

  21. Where do tornadoes most likely occur? More than 500 tornadoes occur every year in the Great Plains, better known as the “Tornado Alley.”

  22. TORNADO DESTRUCTION

  23. Avalanches • An avalanche can occur when slow starts sliding from a mountainside. • The slabs of snow can travel up to 80 mph. • Avalanches are most likely to occur during or within 24 hours after a snowstorm that drops more than 12 inches of snow.

  24. Who needs to be aware of avalanches? Snowboarders Skiers Snowmobile riders

  25. Avalanche Fatality by country

  26. Avalanche DESTRUCTION

  27. Tsunamis • A giant wave produced by under water movement caused by earthquakes, volcanic eruptions, meteorites and landslides. • Tsunamis most likely occur in the Pacific Ocean. • The waves can travel as fast as 450 miles per hour. • The waves can be as high as 100 feet.

  28. At greatest risk for a Tsunami. • Hawaii gets about one a year.

  29. Tsunami DESTRUCTION

  30. http://www.weatherwizkids.com/weather-games.htm http://www.stopdisastersgame.org/en/playgame.html

  31. Bibliography http://environment.nationalgeographic.com/environment/natural-disasters/#sf http://www.weatherwizkids.com/ http://atlantisinireland.com/hazards.php http://www.mediacollege.com/downloads/sound-effects/disaster/ http://www.bing.com/images/search?q=types+of+volcanos+cinder+cones#focal=99b1412e68b06a0b5824870a926e1054&furl=http%3A%2F%2F0.tqn.com%2Fd%2Fgeology%2F1%2F0%2FV%2FI%2F1%2FcinderconeHI.jpg http://www.bing.com/images/search?q=composite+volcanoes&form=QBIL&qs=n&sk=&sc=7-19#focal=790e70ca1c04d89101897badbb9ffdec&furl=http%3A%2F%2Flcc.ctc.edu%2Fdepartments%2Fnatural_sciences%2Fpictures%2Fpics%2FVolc%2FP7190442hood.jpg http://www.rsiphotos.com/images/photos/Arenal_Night_Lava_1B.jpg http://static.howstuffworks.com/gif/eye-of-tornado-1.jpg http://www.illustratorsonline.com/herring/science/Tornado.gif http://en.wikipedia.org/wiki/Avalanche http://www.ehow.com/about_6360572_avalanche-natural-disasters.html

  32. Bibliography http://www.naturaldisasters.ednet.ns.ca/Projects/Avalanche/bja.htm http://www.naturalsciences.be/common/images/active/sciencenews/tsunami/tsunami.jpg http://shineanthology.files.wordpress.com/2009/12/fire.jpg http://us.bestgraph.com/gifs/ski-1.html http://www.uselessgraphics.com/P-T/snowboarding.htm http://dir.coolclips.com/Sports/Recreational_Sports/Snowmobiling/ http://www.ready.gov/kids/step3/index.html http://www.fema.gov/kids/tsunami.htm http://seewarn.com/Tsunami%20flood%20destruction.jpg http://academic.evergreen.edu/g/grossmaz/BEAVERNP/thailand_tsunami.jpg http://www.greendiary.com/images/r_destruction_by_tsunami_waves.jpg http://seewarn.com/tsunami1%20wave%202004.jpg http://www.weatherwizkids.com/weather-games.htm http://www.stopdisastersgame.org/en/playgame.html

More Related