E-learning jako vzdělávací nástroj školy 3. tisíciletí

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Natural disasters – explanations, pictures, discussion

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1 Read through the following explanations (from a kid´s website), match them with the pictures below and say what their names are. Comment on the pictures:


... happen during heavy rains, when rivers overflow, when ocean waves come onshore, when snow melts too fast or when dams break. … may be only a few inches of water or it may cover a house to the rooftop. … are the most common of all natural hazards. It can happen in every U.S. state and territory.



… are severe tropical storms that form in the southern Atlantic Ocean, Caribbean Sea, Gulf of Mexico, and in the eastern Pacific Ocean. … gather heat and energy through contact with warm ocean waters. Evaporation from the seawater increases their power.

… rotate in a counter-clockwise direction around an "eye." … have winds at least 74 miles per hour. When they come onto land, the heavy rain, strong winds and heavy waves can damage buildings, trees and cars.



A … is a series of huge waves that happen after an undersea disturbance, such as an earthquake or volcano eruption. (… is from the Japanese word for harbor wave.) The waves travel in all directions from the area of disturbance, much like the ripples that happen after throwing a rock. The waves may travel in the open sea as fast as 450 miles per hour. As the big waves approach shallow waters along the coast they grow to a great height and smash into the shore. They can be as high as 100 feet. They can cause a lot of destruction on the shore. They are sometimes mistakenly called "tidal waves," but … have nothing to do with the tides.

Hawaii is the state at greatest risk for a …. They get about one a year, with a damaging tsunami happening about every seven years. Alaska is also at high risk. California, Oregon and Washington experience a damaging … about every 18 years.



A … is a mountain that opens downward to a pool of molten rock below the surface of the earth. When pressure builds up, eruptions occur. Gases and rock shoot up through the opening and spill over or fill the air with lava fragments. Eruptions can cause lava flows, hot ash flows, mudslides, avalanches, falling ash and floods. An erupting … can trigger tsunamis, flashfloods, earthquakes, mudflows and rockfalls.

Active … in the U.S. are found mainly in Hawaii, Alaska, California, Oregon and Washington. The greatest chance of eruptions near areas where many people live is in Hawaii and Alaska. The danger area around a … covers about a 20-mile radius. In May 18, 1980, Mount St. Helens erupted in Washington state. It killed 58 people and caused more than $1 billion in property damage.



… are the shaking, rolling or sudden shock of the earth’s surface. They happen along "fault lines" in the earth’s crust. They can be felt over large areas although they usually last less than one minute. They cannot be predicted -- although scientists are working on it!

The intensity of an … can be measured. One measurement is called the Richter scale. … below 4.0 on the Richter scale usually do not cause damage, and … below 2.0 usually can’t be felt. The most important thing to remember during an … is to DROP, COVER and HOLD ON. So remember to DROP to the floor and get under something for COVER and HOLD ON during the shaking.



… are a danger for people who live in forest, prairies or wooded areas. These fires are sometimes started by lightning or by accident. They can move very fast and burn many acres. Remember, if there is a wildfire near you and your family is told to evacuate -- go right away! And remember to bring your pets with you!







Every family should have a Disaster Supply Kit in their home. The kit will help you and your family during a disaster. In a hurricane or earthquake, for example, you might be without electricity and the water supply may be polluted. In a heavy winter storm or flood, you may not be able to leave your house for a few days. In times like this, you will need to rely on yourself. Your disaster supply kit will make it easier. Remember, your family will probably never need to use your disaster supply kit, but it's always better to be prepared.

2 Discussion:

  • Discuss the presented disasters.
  • What do you know about them?
  • Where do they occur?
  • Can they be prevented?
  • Can they appeare in your area?
  • Which disaster do you consider most dangerous? Why?
Navigace: 2. ročník Globalization Natural disasters – explanations, pictures, discussion