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