CANGING FACES OF THE EARTH - THE PROCESS - I
Across
- 1. the intensity of an earthquake is measured with an instrument called _____________.
- 5. the science of the study of earthquakes is called _________.
- 6. the point in the interior of the earths from where the earthquake tremors originate is called __________.
- 9. ____________ is the solid outer crust forming the surface of the earth.
- 10. this process of transformation of the rock from one to another is known as the __________.
- 15. ___________ rocks are formed through the process of metamorphism.
- 16. ___________ rocks are those rocks which have solidified from the molten material or the lava ejected from the interior of the earth.
- 21. a ___________ is a naturally occurring substance having a definite chemical composition and physical properties.
- 23. the point on the earths surface vertically above the focus is called _____________.
- 25. the upper part of the mantle.
- 26. tremors and vibration in the crust of the earth are called ____________.
- 28. the other name for core.
Down
- 2. ___________ rock are formed through consolidation of sediments deposited in water-bodies like river lakes and seas.
- 3. ____________ is the uppermost layer of the earth and is also called lithosphere.
- 4. remains of plants and animals trapped in layers of rocks.
- 7. the upper part of the vent is often a cup or saucer shaped depression, called the ________ of the volcano.
- 8. a _________ is the opening in the crust of the earth through which material from the interior of the earth is ejected on to the surface.
- 11. due to the high temperature in the interior of the earth the rocks are in molten state called ___________.
- 12. __________is the intermediate layer of the earths crust and core.
- 13. ____________ is the outer lighter part and the upper crust.
- 14. sometimes the material from the interior of the earth is ejected to the surface through a long crack like opening.such a volcano is called __________ volcano.
- 17. ___________ is the lower part of the crust.
- 18. people who study about earthquakes is called _________________.
- 19. volcanic material that flows on the surface of the earth is called __________.
- 20. the narrow opening of a volcano is called the ________.
- 22. the metallic minerals like nickel (NI) and iron (FE) due to which the core is called _________ .
- 24. _________ is the very hot,very dense center of the earth.
- 27. any mass of harder portion of the earths crust can be called __________.