Relier Pairs Earthquakes & VolcanoesVersion en ligne Revision of Year 4 Geography (Term 3 2017/2018) par Choi Ming Jiun 1 A volcano begins as 2 Suddenly they slip past each other 3 The Earth's Plates 4 When the volcano erupts, 5 When the Earth's plates meet, 6 The Earth's Crust 7 The edges of the plates sometimes 8 Active volcano is 9 The Mantle 10 There are even more volcanoes under the sea 11 Pressure builds up as 12 Extinct volcano is 13 Earthquake is like a drawer which has stuck 14 Dormant volcano or sleeping volcano is 15 When hot and runny rocks comes out of a volcano it is called 16 The Earth's Core 17 Hot and runny rock under the surface of the Earth is called forms a new island. has not erupted for at least 10000 years. magma. A very thick layer of hot rocks A layer of solid rock beneath the soil lava. volcano that is erupting or can still erupt. The outer core made of hot liquid iron with some nickel molten rock, smoke,dust, ashes and gases escape through the opening. the plates push against each other. a hole or crack in the Earth's crust. have to tug it hard then suddenly it gives way with a jolt. The solid plates float on the molten rocks of the mantle underneath. volcanoes that have not erupted for a long time. the land above shakes violently. stick together and cannot move. they usually slide past each other.
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