1. Explanation Text
What is Explanation?
1. Definition and purposes of Explanation
Explanation is a text which tells processes relating to forming of natural, social, scientific and cultural phenomena. Explanation text is to say 'why' and 'how' of the forming of the phenomena. It is often found in science, geography and history text books.
2. Generic structure of Explanation
· General statement; stating the phenomenon issues which are to be explained.
· Sequenced explanation; stating a series of steps which explain the phenomena.
3. Language Feature
· Featuring generic participant; sun, rain, etc
· Using chronological connection; to begin with, next, etc
· Using passive voice pattern
· Using simple present tense
4. Examples and structures of the text
| Making Paper from Woodchips | |
| A general statement | Woodchipping is a process used to obtain pulp and paper products from forest trees. |
| | The woodchipping process begins when the trees are cut down in a selected area of the forest called a coupe. |
| A sequenced explanation of | Next the tops and branches of the trees are cut out and then the logs are taken to the mill. |
| why or how something occurs | At the mill the bark of the logs is removed and the logs are taken to a chipper which cuts them into small pieces called woodchips. |
| The woodchips are then screened to remove dirt and other impurities. At this stage they are either exported in this form or changed into pulp by chemicals and heat. | |
| | The pulp is then bleached and the water content is removed. |
| Closing | Finally the pulp is rolled out to make paper. |
The term of “tsunami” comes from the Japanese which means harbour ("tsu") and wave ("nami"). A tsunamigk is a series of waves generated when water in a lake or the sea is rapidly displaced on a massive scale.
A tsunami can be generated when the sea floor abruptly deforms and vertically displaces the overlying water. Such large vertical movements of the earth's crust can occur at plate boundaries.
Subduction of earthquakes are particularly effective in generating tsunamis, and occur where denser oceanic plates slip under continental plates.
As the displaced water mass moves under the influence of gravity to regain its equilibrium, it radiates across the ocean like ripples on a pond.
Tsunami always bring great damage. Most of the damage is caused by the huge mass of water behind the initial wave front, as the height of the sea keeps rising fast and floods powerfully into the coastal area.
(simplified from www.panda.org)
The sun seems to rise in the morning, crosses the sky during the day and sets at night. However the sun does not actually move around the earth. Earth's turning on its axis makes it look as if the sun is moves.
The earth makes a complete turn on its axis for 24 hours. It is called as rotation. It causes day and night. The earth also moves around the sun. It takes 365 days or a year. This process is called revolution. The revolution process causes the changes of the season
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