Explanation text
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The document contains explanations of two natural phenomena: 1) It explains tsunamis as series of waves generated by rapid displacement of large volumes of water, often caused by earthquakes or landslides, and how they radiate across oceans and cause damage upon reaching land. 2) It explains the water cycle as the continuous movement of water on Earth through evaporation, condensation, precipitation, and flow towards oceans, where the cycle repeats as heat from the sun evaporates water again.
Explanation text
- 1. EXPLANATION
- 2. The Soul • Gina Tonia • Arropi Hikmah • Ady Irawan • Bhakti Wiguna • Ipan Saidina Language Class
- 3. Social Fuction To explain the processes involved in the formationn or workings of natural or sociocultural phenomena.
- 4. Generic Structure • General statement • Sequenced explanation • Conclusion
- 5. Significant Features • Focus on generic, non-human participants • Use mainly of material and relational processes • Use conjunctions • Use nouns • Use verbs • Use the simple present tense
- 6. Tsunami
- 7. General Statement The term of “tsunami” comes from the japanese which means harbour “tsu” and wave “nami”. A tsunami is series of waves generated when water in a lake or the sea is rapidly displaced on a massive scale.
- 8. Sequenced Explanation A tsunami can be generated when the sea floor abruptly deforms and vertically displaces the overlyng water. Such large vertical movements of the earth’s crusht can occur at plate boundaries. Subduction of earthquakes are particulerly effective in generating tsunamis, and occur where denser oceanic plate slim under continental plates.
- 9. As the displaced water mass moves under the influence or gravity to regain its equilibrium, it radiates across the ocean like ripples on a pond.
- 10. Conclusion Tsunamis always brine 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.
- 11. Water Cycle
- 12. General Statement The water cycle is the never-ending movement of the earth’s water. Water goes from the ocean to the air, to the land, and back to the oceans again. For that reason, its movement is called a cycle.
- 13. Sequenced Explanation This cycle begins when heat from the sun turns ocean water into water vapor. Water vapor is water that has become a gas. The water vapor rises high into the sky, where it cools off. The cooled water vapor changes into tiny drops of water. The drops are held up in the sky by rising warm air. When billions of these drops of water cluster together they form a cloud. The water in the clouds eventually falls to earth as rain. If the water vapor is cold enough, it turns into ice and falls as snow.
- 14. Conclusion Most rain and snow falls into the ocean, but some falls on land. In time, this water also flows back to the ocean and the cycle starts again.
- 15. THANK YOU