Grade 2 Reading Unit 4 Lesson 2 into the sea

Almajd American Diploma · ⏱ 3:02 · 204 مشاهدة · 5 years ago

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into the sea into the sea this is expository text ocean waves change beaches over time ocean waves and wind can wash away land they can change the shape of land on earth this is called erosion big storms make strong waves storm waves can move lot of sand fast erosion can make beaches disappear buildings can be washed away erosion can make steep cliffs crumble what is erosion have you ever made sand castle at the beach you must pick good spot for it if it is too close to the water waves will quickly wash it away ocean waves and wind can also wash away land they can change the shape of an island which is land circled by water when wind and water change the shape of earth it is called erosion waves are the biggest cause of erosion at the beach ocean waves are always active and moving onto the shore they carry the sand away bit by bit strong waves are one of the properties of big storms these waves explode as they crash onto the beach storm waves can move lot of sand quickly erosion of beaches some people build houses near the ocean waves take away the sand between the houses and the sea as the beach disappears the water gets closer to houses and other solid buildings on the beach some buildings can even be washed away erosion of rocks erosion also happens on steep rocky cliffs or sharp slopes first wave smash into the bottom of the cliffs then they carry away tiny pieces of rock over time many small pieces of rock wash away from the bottom of the cliff this makes the top of the cliff weak the cliff can crumble and fall into the sea before erosion after erosion stopping erosion some local communities work to stop erosion to nearby beaches these towns have built sea walls of large boulders or rocks the rocks are placed in row in the sea when waves hit the sea wall they slow down then the waves can't pull sand away some towns make rules about building on the beach new buildings must be far from the water then they won't wash away like sand castle