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MOVEMENTS ON LAND
1
INTRODUCTION
There are different movements in the world. There are technology movements, water movements,land movements and more. These are called "Forces of Nature." Here are some examples of movements on land.
These forces are all natural, made by the Earth.
Where do these natural movements occur?
Some real life natural movements are;
On Sunday May 22, 1960 the most powerful
earthquake occurred in Valdivia, Chile. It was rated 9.5 on the M.M.S ( moment magnitude scale). It started at 6:02 on May 21, 1960.
In 1980 a major eruption at Mount St.Helens, Washington, USA. This was caused by an ejection of magma at shallow depth below the volcano that created by a huge bulge. An eruption column rose 80,000 feet (24 km) into the atmosphere.
MOVEMENTS ON LAND
Earthquakes
Tornadoes
Hurricanes
Volcanoes
Thanks for Watching!
By: Camilla and Gab
Valdivia, Chile
Mount St.Helens
1980
1960
Hurricanes occur when the water
is warmed during the summer. The
solar energy, from the sun heats the
water up. The heat from the water is
transferred to the atmosphere.
Tornadoes occur when two
different temperatures collide.
The heat of sun heats a place and
its pressure gets decreased, Then
the air from high pressure region
comes so rapidly in
Why do these forces occur?
A volcano usually forms when the
magma from deep in the earth
erupts. The lava then flows out onto
the earths surface and then hardens.
The rock crumbs and lava build up
to create a volcano.
Earthquakes occur when a rock underground suddenly breaks. This sudden movement is called seismic waves that make the ground shake. The rocks break because of all the pressure that was built up. Then when the rocks break, an earthquake occurs.