Matching Pairs The Relief formationOnline version Activity for the Unit 1. 3rd of ESO (9th year) Geography by JUSTINA Castillo García 1 Rifts or cracks are formed in the ocean's crust when... 2 Movement of the eroded material. 3 FAULTS occur when the crust is rigid and fractures. Some blocks sink while others rise and form mountains 4 Caused by the interaction of temperature, wind and water. 5 6 Slow changes in the relief that take place over an extended period of time in three phases 7 SEDIMENTATION 8 The Earth's crust is made up of plates wich float on the top of the mantle and very slowly separate, slide against each other or collide 9 10 When a plate on the ocean's crust collides with the edge of a continental plate it is pushed down into the Earth's interior, where high temperatures melt the crust and turn it into magma. The theory of plate tectonics When two continental plates collide. They are called FOLDS the plates separate EXOGENOUS PROCESSES Deposition of materials in another place TRANSPORTATION EROSION EXOGENOUS PROCESS
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