The Goal Explanation to explain THE PROCESSES involved IN THE FORMATION or workings of NATURAL or SOCIOCULTURAL PHENOMENA.
The Generic Structure A GENERAL STATEMENT to position the reader A sequenced explanation of why or How Something Occurs. CONCLUSION (optional)
Making Paper from WoodchipsGeneral statementWoodchipping is a process used to obtain pulp and paper products from foresttrees. The woodchipping process begins when the trees are cut down in aselected area of the forest called a coupe.Squence of explanationNext the tops and branches of the trees are cut out and then the logs are taken tothe mill. At the mill the bark of the logs is removed and the logs are taken to achipper which cuts them into small pieces called woodchips. The woodchips arethen screened to remove dirt and other impurities. At this stage they are eitherexported in this form or changed into pulp by chemicals and heat. The pulp isthen bleached and the water content is removed.ClosingFinally the pulp is rolled out to make paper.
How Earthquakes HappenEarthquake is one of the most destroying natural disasters. Unluckily it oftenhappens in several regions. Recently a horrible earthquake has shaken WestSumatra. It has brought great damages. Why did it occur? Do you know howan earthquake happens?Earthquakes are usually caused when rock underground suddenly breaksalong a fault. This sudden release of energy causes the seismic waves. Itmake the ground shake. When two blocks of rock or two plates are rubbingagainst each other, they stick a little. They dont just slide smoothly. The rocksare still pushing against each other, but not moving. After a while, the rocksbreak because of all the pressure thats built up. When the rocks break, theearthquake occurs.During the earthquake and afterward, the plates or blocks of rock startmoving, and they continue to move until they get stuck again. The spotunderground where the rock breaks is called the focus of the earthquake. Theplace right above the focus is called the epicenter of the earthquake.