11
What are Natural What are Natural Disasters? Disasters? NATURAL DISASTERS NATURAL DISASTERS

What are Natural Disasters? NATURAL DISASTERS. The World is always changing. Natural disasters are changes which are so great they may cause damage to

Embed Size (px)

Citation preview

Page 1: What are Natural Disasters? NATURAL DISASTERS. The World is always changing. Natural disasters are changes which are so great they may cause damage to

What are Natural What are Natural Disasters?Disasters?

NATURAL DISASTERSNATURAL DISASTERS

Page 2: What are Natural Disasters? NATURAL DISASTERS. The World is always changing. Natural disasters are changes which are so great they may cause damage to

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.

Page 3: What are Natural Disasters? NATURAL DISASTERS. The World is always changing. Natural disasters are changes which are so great they may cause damage to

What are Natural Disasters?What are Natural Disasters?

Volcanic eruptionVolcanic eruption EarthquakeEarthquake Cyclone or Cyclone or

HurricaneHurricane AvalancheAvalanche FloodFlood DroughtDrought Forest fire or Forest fire or

BushfireBushfire

Page 4: What are Natural Disasters? NATURAL DISASTERS. The World is always changing. Natural disasters are changes which are so great they may cause damage to

VolcanoesVolcanoes A volcanic eruption is the spurting A volcanic eruption is the spurting

out of gases and hot lava from an out of gases and hot lava from an opening in the Earth’s crust.opening in the Earth’s crust.

Pressure from deep inside the Earth Pressure from deep inside the Earth forces ash, gas and molten rock to forces ash, gas and molten rock to the surface.the surface.

Page 5: What are Natural Disasters? NATURAL DISASTERS. The World is always changing. Natural disasters are changes which are so great they may cause damage to

EarthquakeEarthquake An earthquake is a violent shaking of An earthquake is a violent shaking of

the ground. Sometimes it is so strong the ground. Sometimes it is so strong that the ground splits apart.that the ground splits apart.

When parts of the earth, called plates, When parts of the earth, called plates, move against each other giant shock move against each other giant shock waves move upwards towards the waves move upwards towards the surface causing the earthquake.surface causing the earthquake.

Page 6: What are Natural Disasters? NATURAL DISASTERS. The World is always changing. Natural disasters are changes which are so great they may cause damage to

Cyclone, Hurricane, Tornado Cyclone, Hurricane, Tornado or Typhoonor Typhoon

A Cyclone is a fierce storm with storm winds that spin around it in a giant circle. During a cyclone trees can be uprooted, buildings can be destroyed and cars can be overturned.

Page 7: What are Natural Disasters? NATURAL DISASTERS. The World is always changing. Natural disasters are changes which are so great they may cause damage to

AvalancheAvalancheAn Avalanche is a movement of snow, ice and rock down a mountainside. Avalanches happen very suddenly and can move as fast as a racing car up to 124mph.

Avalanches can be caused by –

snow melting quickly

snow freezing, melting then freezing again

someone skiing

a loud noise or an earth tremor

Page 8: What are Natural Disasters? NATURAL DISASTERS. The World is always changing. Natural disasters are changes which are so great they may cause damage to

FloodFlood

A flood is caused by an overflow of water which covers the land that is usually dry.

Floods are caused by heavy rain or by snow melting and the rivers burst their banks and overflow.

Costal floods are caused by high tides, a rise in sea level, storm waves or tsunami (earthquakes under the sea).

Page 9: What are Natural Disasters? NATURAL DISASTERS. The World is always changing. Natural disasters are changes which are so great they may cause damage to

DroughtDroughtA drought is the lack of rain for a long time.

In 1968 a drought began in Africa. Children born during this year were five years old before rain fell again.

Page 10: What are Natural Disasters? NATURAL DISASTERS. The World is always changing. Natural disasters are changes which are so great they may cause damage to

Forest Fire or BushfireForest Fire or Bushfire

Fires can burn out of control in areas of forest or bush land. Fires are caused by lightning, sparks of electricity or careless people. Wind may blow a bushfire to areas where people live.

Page 11: What are Natural Disasters? NATURAL DISASTERS. The World is always changing. Natural disasters are changes which are so great they may cause damage to

TUGAS TUGAS

DEFINISI 7 BENCANA ALAMDEFINISI 7 BENCANA ALAM CONTOH BENCANA ALAM YANG CONTOH BENCANA ALAM YANG

TERJADI DI INDONESIA (5W1H)TERJADI DI INDONESIA (5W1H) WHAT, WHERE, WHEN, WHO, WHY. WHAT, WHERE, WHEN, WHO, WHY.

HOWHOW SOLUSI DARI BENCANA ALAM SOLUSI DARI BENCANA ALAM

TERSEBUTTERSEBUT