Explanation Text.

Hi guys! Earlier we learned about explanation text, starting from definitions, general structure, and examples.

Firstly, explanation text is text which tells process relating to forming of natural, social, scientific, and cultural phenomenon. 

The generic structure is :

General Statement, starting the phenomenon issue which are to be explained.

Sequence of Explanation, starting a series of steps which explain the phenomenon.

The purpose is to explain how something happens.

Language Features:

• often have a logical sequence.
• use cause/effect relationships (then, as a consequence, so, if)
• use time relationships (first, then, following, finally)
• written in the 'timeless' present tense (are, turns, happens)
• use of action verbs (falls, rises, changes)

After studying, we wrote an example of an explanation text about tsunami.

        Tsunami is a scientific term for a class of abnormal sea wave that can cause catastrophic damage when it hits a coastline. This word comes from the Japanese word, which means harbor (tsu) and wave (nami). Tsunamis can be generated by an undersea earthquake and landslide, volcanic eruptions, or by the force of an asteroid crashing into the ocean. The most frequent cause of tsunamis is an undersea earthquake.

        A tsunami is started to develop after an earthquake or other generating impulses occurs. A series of waves then spreads over the ocean surface in ever-widening circles. In deep water, the height of a tsunami is only about 30 to 60 centimeters. However, it behaves like shallow water waves, which means the deeper the water, the faster it travels. For instance, a tsunami can travel more than 400 kilometers per hour at 4,000 meters deep in the ocean.

        As the waves approach the land, friction with the rising sea bottom and turbulences reduce the speed of the waves. As the speed lessens, the wavelengths become shortened and the wave heights increase. The force of a tsunami as it reaches shore is still enormous, and it will continue to travel until its energy is completely dissipated. It may travel inland several hundred feet that carrying with it boats, large rocks, trees, and other heavy debris. Coastal waters may rise as high as 30 meters above normal sea level in 10 to 15 minutes. The flow of the water back to the sea can also be extremely destructive.

          All lowland coastal areas are vulnerable to tsunamis. The waves pack enough energy to destroy an entire coastal community in moments. Because these waves have very long periods, the danger posed by a tsunami can last several hours and the first wave may not be the largest of the series.

https://www.contohtext.com/2019/06/contoh-explanation-text-tsunami.html