Aims of this lesson

To introduce the forces of nature.

To define the types of natural disasters.

To make comparison between tornados and hurricanes. To mention some means that help people save themselves from natural disasters .

To evaluate the achievement of the aims by giving a quiz.

The Forces of Nature The sun’s heat

and light

The Forces of Nature Air

The Forces of Nature Water

The Forces of Nature

Air The sun’s heat and light

Water

When they combine with water they become dangerous killers

They form disasters

Givers

When do givers become dangerous killers ?

Dangerous weather

Types of natural disaster

avalanche floodhurricane

mud slip

tornado

HurricaneA violent storm, characterized by extreme fury and sudden changes of the wind,and generally accompanied by rain, thunder, and lightning; -- especially prevalent in the East and West Indies.

FloodAn overflowing of water onto land that is normally dry.

Avalanche A fall or slide of a large mass, as of snow or rock, down a mountainside

TornadoA violent thunderstorm in western Africa or nearby Atlantic waters .

MudslipWater soaked soil; soft wet earth

Comparison betweenTornadoesHurricanes

1 )Tornado winds actually blow much faster than hurricanes and can reach 450 kph.

2 )They are not nearly destructive than hurricane. They have fantastic power that they can carry of people , cars and even buildings.

3 )Tornadoes cover an area of a few hundreds metres wide.

4 )Tornadoes are also called twisters.

1)Hurrican winds actually blow much slower than tornadoes. The fastest hurricanes wind speeds are little more than half as great , they can reach a speed of 240 kph or they can reach a speed of just 118 kph.

2)They are more destructive than tornadoes. They can destroy whole countries in just hours.

3 )Hurricanes may cover an area of 800 kilometres across.

4 )Hurricanes are also called cyclones or typhoons.

1 .Can we stop the forces of nature to avoid making disasters?

Questions?

No, we can’t but we can forecast the time when disasters happen by using modern

technology and satellites pictures .

Answer:

2 .How can we save lives? Questions?

(1)Technology (2)transport (3 )wealth

(a )Spacesatellitepictures

(b )Storms Forecast Center (a )planes

(b )cars(c )buses (a )money

Weather balloonsInformation

Weatherstations

2 .How can we save lives? By using

3 .How can technology save lives?

By using space satellite pictures that give information to storms Forecast Center .

3 .How can technology save lives?

4 .Where does storms Forecast Center get information from?

It gets information from weather balloons, weather stations and satellite pictures .

4 .Where does storms Forecast Center get information from?

5 .How can transport save lives ?

By escaping by planes, cars or buses .

5 .How can transport save lives?

6 .How can wealth save lives ?

If you have much money. This means you have a car or a plane. When a disaster happens, you can escape from it by using the car or the plane .

6 .How can wealth save lives?

A quiz 1-Name the types of natural disaster.

A quiz

avalanche floodhurricane

mud slip

tornado

A quiz 2 -What are the forces of nature?

The Forces of Nature

Air The sun’s heat and light

Water

A quiz 3 -When do the sun’s heat and the air become killers?

When they combine with water they become dangerous killers

A quiz 4 -What are the differences between tornadoes and hurricanes?

Comparison betweenTornadoesHurricanes

1 )Tornado winds actually blow much faster than hurricanes and can reach 450 kph.

2 )They are not nearly destructive than hurricane. They have fantastic power that they can carry of people , cars and even buildings.

3 )Tornadoes cover an area of a few hundreds metres wide.

4 )They are never more than a few hundred metres wide.

5 )Tornadoes are also called twisters.

1)Hurrican winds actually blow much slower than tornadoes. The fastest hurricanes wind speeds are little more than half as great , they can reach a speed of 240 kph or they can reach a speed of just 118 kph.

2)They are more destructive than tornadoes. They can destroy whole countries in just hours.

3 )Hurricanes may cover an area of 800 kilometres across

4 )They may be as much as 800 kilometres across.

5 )Hurricanes are also called cyclones or typhoons.

Sahar Amro