The Earth’s interior structure is compared with that of an apple
The crust is the outer-most layer of the earth.
The upper part of the earth crust is SIAL.
The lower part of the earth crust is SIMA.
The mantle is about 2900km thick.
The lithosphere is broken into a number of plates known as the lithospheric
The earthquake waves are recorded by aninstrument known as seismograph.
• Tsunami is caused by an underwater earthquake.
A volcano is a vent or opening in the earth crust.
The Shape of a volcano depends on the
of lava and force of the eruption.
There are three major zone of volcanic activity in the world.
Core: The inner most layer
of the earth கரு
Mantle: The second layer
beneath the crust கவசம்
Boundary that separated the mantle from the crust மோஹோரோவிசிக் எல்லை
Land slide: Downward
movements of rock debris of the mountain நிலச்சரிவு
to measures the magnitude of an earthquake சீஸ்மோகிராப்
Tsunami: Sea waves caused by an
underwater earthquake or a volcanic eruption under sea. ஆழிப்பேரலை
Vent: An opening a the earth
surface from which volcanic material is emitted எரிமலைத் துளை
Magma: The molten state of
Lava: The solidified form of
magma after it reaches the surface of the earth எரிமலைக்குழம்பு
10. Viscosity: A liquids resistance to flow பாகுத்தன்மை
Majid Husain, Physical Geography Anmol
Publication Pvt Ltd
A Das Gupta, A.N. Kapoor, Principles of
Physical Geography, S. Chand & Company Ltd., New Delhi
Goh Cheng Leong, certificate Physical
and Human Geography, Oxford University press.Savindra Singh (2015) physical
Geography Pravalika publications Allahabad.
Interior of the Earth
select full screen mode
and play the game with descriptions
1: Open the Browser and type the URL
given below (or) Scan the QR Code.
2: Click on the Map to start
select full screen mode and play the game with descriptions
of the Earth URL:
*Pictures are indicative only
*If browser requires, allow Flash Player or Java Script to load the page.