[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"pubgrp:rd-volcano:en:ja":3},{"type":4,"slug":5,"title":6,"level":7,"goal":8,"image_path":8,"is_locked":9,"is_daily_free":9,"passage":10,"questions":34,"vocab":83},"reading","rd-volcano","火山","intermediate",null,false,[11,15,19,23,26,30],{"en":12,"ko":13,"ko_audio":8,"audio":14},"Volcanoes are openings in the Earth's crust where hot melted rock, called magma, rises from deep below the surface.","A volcano is a hole in the Earth's crust from which hot molten rock (magma) rising from deep below the surface emerges.","https:\u002F\u002Fpub-96bedcbbfd0f4e5d82c4505745cced9c.r2.dev\u002Fblock_audio\u002F21afc89f-e2b8-4785-972f-7310825b2dfd.mp3",{"en":16,"ko":17,"ko_audio":8,"audio":18},"The Earth's crust is divided into large pieces called tectonic plates that constantly move very slowly.","The Earth's crust is divided into large pieces called tectonic plates that move endlessly and very slowly.","https:\u002F\u002Fpub-96bedcbbfd0f4e5d82c4505745cced9c.r2.dev\u002Fblock_audio\u002Fe14f6ba3-2ea7-42a4-bf0c-e37a9ea91a8e.mp3",{"en":20,"ko":21,"ko_audio":8,"audio":22},"When these plates collide or move apart, they create pressure and heat that causes rock to melt into magma.","When these plates collide or move apart, they generate pressure and heat that melts rock into magma.","https:\u002F\u002Fpub-96bedcbbfd0f4e5d82c4505745cced9c.r2.dev\u002Fblock_audio\u002Fbdf213e0-047a-4647-9e6c-12f3c7210b06.mp3",{"en":24,"ko":24,"ko_audio":8,"audio":25},"The magma becomes lighter than the surrounding rock and begins to rise through cracks in the crust.","https:\u002F\u002Fpub-96bedcbbfd0f4e5d82c4505745cced9c.r2.dev\u002Fblock_audio\u002F70adf0b1-9233-4869-8c2d-8d93a71a6131.mp3",{"en":27,"ko":28,"ko_audio":8,"audio":29},"When this hot magma reaches the Earth's surface, it erupts as lava, ash, and gases, creating a volcanic eruption.","When this hot magma reaches the surface, it erupts as lava, volcanic ash, and gas, causing a volcanic explosion.","https:\u002F\u002Fpub-96bedcbbfd0f4e5d82c4505745cced9c.r2.dev\u002Fblock_audio\u002Fe96e8d17-ea11-43b1-bdc5-84325c0e3756.mp3",{"en":31,"ko":32,"ko_audio":8,"audio":33},"Over time, repeated eruptions build up layers of cooled lava and ash, eventually forming a volcano mountain.","Over time, repeated eruptions build up layers of cooled lava and volcanic ash, eventually forming a volcanic mountain.","https:\u002F\u002Fpub-96bedcbbfd0f4e5d82c4505745cced9c.r2.dev\u002Fblock_audio\u002Faa14cbd6-d244-4ff4-90c4-6ecdf957212b.mp3",[35,42,49,56,63,70,77],{"q":36,"options":37,"answer":39},"What is magma?",[38,39,40,41],"Solid rock in the Earth's crust","Hot melted rock rising from deep below the Earth's surface","Ash and gases from eruptions","Pieces of the Earth's crust",{"q":43,"options":44,"answer":45},"How do tectonic plates cause volcanoes to form?",[45,46,47,48],"They create pressure and heat that melts rock into magma","They prevent magma from rising","They cool down the Earth's interior","They absorb all the magma",{"q":50,"options":51,"answer":52},"What is the difference between magma and lava?",[52,53,54,55],"Magma is below the surface; lava is on the surface","They are exactly the same thing","Lava is hotter than magma","Magma only appears during small eruptions",{"q":57,"options":58,"answer":60},"Why does magma rise through the Earth's crust?",[59,60,61,62],"Because it is attracted to the surface","Because it is lighter than the surrounding rock","Because tectonic plates pull it upward","Because it contains gases that push it down",{"q":64,"options":65,"answer":67},"How are volcano mountains formed over time?",[66,67,68,69],"Sudden earthquakes pile up rock","Repeated eruptions build up layers of cooled lava and ash","Wind and rain shape the landscape","Underground rivers carve out the shape",{"q":71,"options":72,"answer":74},"What comes out of a volcano during an eruption?",[73,74,75,76],"Only water and steam","Lava, ash, and gases","Only ash and smoke","Cold rock and ice",{"q":78,"options":79,"answer":80},"What role do cracks in the Earth's crust play in volcano formation?",[46,80,81,82],"They allow magma to rise through them to the surface","They trap magma permanently underground","They have no effect on volcanoes",[84,89,94,99,104,109],{"en":85,"ko":86,"ko_audio":87,"audio":88},"crust","クラスト（パンやピザの外皮）","https:\u002F\u002Fpub-96bedcbbfd0f4e5d82c4505745cced9c.r2.dev\u002Ftrans_audio\u002F2d21e1e4-fbb2-4308-814b-4e8fb2fc7093.mp3","https:\u002F\u002Fpub-96bedcbbfd0f4e5d82c4505745cced9c.r2.dev\u002Fword_audio\u002F2122c94a-bc82-447b-8fc2-088df6fd1abe.mp3",{"en":90,"ko":91,"ko_audio":92,"audio":93},"magma","マグマ（地表下の溶融岩）","https:\u002F\u002Fpub-96bedcbbfd0f4e5d82c4505745cced9c.r2.dev\u002Ftrans_audio\u002Fa4b53ccc-c7dc-47ec-9d76-efdf32792d94.mp3","https:\u002F\u002Fpub-96bedcbbfd0f4e5d82c4505745cced9c.r2.dev\u002Fword_audio\u002F9ec0dcdc-917d-4bea-858d-a97e4b09d3dd.mp3",{"en":95,"ko":96,"ko_audio":97,"audio":98},"tectonic plates","プレート","https:\u002F\u002Fpub-96bedcbbfd0f4e5d82c4505745cced9c.r2.dev\u002Ftrans_audio\u002F1bc87133-342b-475f-b28b-e17fca206326.mp3","https:\u002F\u002Fpub-96bedcbbfd0f4e5d82c4505745cced9c.r2.dev\u002Fword_audio\u002F3840552b-43df-41e1-8a35-73c774b6f378.mp3",{"en":100,"ko":101,"ko_audio":102,"audio":103},"erupt","噴出する、（火山が）爆発する","https:\u002F\u002Fpub-96bedcbbfd0f4e5d82c4505745cced9c.r2.dev\u002Ftrans_audio\u002F2fd006f7-5cb4-4847-8f33-196c8bdb8fd0.mp3","https:\u002F\u002Fpub-96bedcbbfd0f4e5d82c4505745cced9c.r2.dev\u002Fword_audio\u002F75cb1dad-7bdb-4eaa-a561-9d6f3bf13ff5.mp3",{"en":105,"ko":106,"ko_audio":107,"audio":108},"lava","溶岩","https:\u002F\u002Fpub-96bedcbbfd0f4e5d82c4505745cced9c.r2.dev\u002Ftrans_audio\u002F7a44de68-3175-4486-992c-205ee96b9aab.mp3","https:\u002F\u002Fpub-96bedcbbfd0f4e5d82c4505745cced9c.r2.dev\u002Fword_audio\u002F05866ade-61f5-4014-8cbb-c4e2d1190f5d.mp3",{"en":110,"ko":111,"ko_audio":112,"audio":113},"collision","衝突","https:\u002F\u002Fpub-96bedcbbfd0f4e5d82c4505745cced9c.r2.dev\u002Ftrans_audio\u002F8eebb0a8-bacd-4c56-a73f-f995edada20e.mp3","https:\u002F\u002Fpub-96bedcbbfd0f4e5d82c4505745cced9c.r2.dev\u002Fword_audio\u002F0b0675e0-30ea-4e86-a7fb-4af18aacaa28.mp3"]