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Earth´s Crust
Earth is round, like an orange . Oranges have a skin and Earth
has a skin, too . We call this skin Earth´s crust . Under the
crust there is very hot rock .
Earth´s crust has different pieces . These pieces move very,
very slowly .Millions of years ago, the pieces moved and
made mountains. Under mountians the crust is thick, but under
the ocean it´s thinner. When two pieces of the crust move and
meet, there can be earthquake.
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A volcano is a hole in Earth´s crust. When a volcano erupts,
hot rock flies out from under the ground, and melted rock
pours out over the ground .Volcanoes under the ocean
sometimes make new islands .In 1963, a volcano in the
Atlantic Ocean made a new island called Surtsey.
There are many different rosks in Earth´s crust. They are
millions of years old. The rocks are often different colors. In
the Painted Desert in Arizona in the USA, you can see the
different rocks.
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EARTH´S CRUST – EXERCISES
1. Match
Earth is
Earth´s crust is millions
The pieces of Earth´s crust
There are different rocks
Under Earth´s crust, there´s
There are volcanoes under
of years old
the ocean
in Earth´s crust
round
very hot rocks
move very slowly
2.Complete the sentense.
crust holes ocean old rocks volcano
1. Some mountains are milions of years _______.
2. When pieces of Earth´s _______meet, there are
sometimes earthquakes.
3. Volcanoes are _______in Earth´s crust.
4. The rock in a _______is very hot.
5. Sometimes a volcano under the _______makes a new
island.
6. In the Painted Desert the _______are diferent colors.
3.Circle the odd one out.
1. Japan Earth Russia China
6. Red brown desert yelow
2. orange apple banana skin
3. move fall piece erupt
4. volcano dengerous beautiful incredible
5. in under on ground
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4. Write the words .
1
2
______
_____
5
6
_____
3
4
_______
_____
7
________
__________
8
_____
5. Complete the sentences .
1. Earth is _ _ _ _ _, like an orange.
2. Under Earth´s _ _ _ _ _ there is very hot rock .
3. When piece´s of the crust move, there can be an
_ _ _ _ _ _ _ _ _ _.
4. A _ _ _ _ _ _ _ is a hole in Earth´s crust.
5. Volcanoes under the _ _ _ _ _ sometimes make a new
_ _ _ _ _ _ _.