Geography

• Magma rises and cools=instrusive
• Granite is made in Dublin
• Igneous= granite and basalt
• Magma hits outside air= extrusive
• Basalt is made in Derry
• sedimentary=sandstone and limestone
• Sandstones made in kerry
• Limestone is made in Clare
• sea life cements together and makes sedimentary rock
• Metamorph. = igneous and sedimentary rock heated and made to harder rock
• Marbles made in Kilkenny
• Quartize is made in mayo
• Metamorphic= marble and quartzite
• Passive boundaries= ——>

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• Constructive boundaries= <——>
• Destructive boundaries= ——><——
• Passive boundaries =plates slide past each other
• Earthquakes are caused by plates sliding past each other
• Constructive boundaries= plates separate
• Plates separating cause volcanoes
• Destructive boundaries= plates collide
• Earthquakes are caused by two tectonic plates making friction
• Epicentre=the point directly above earths surface
• Focus point=point directly above the epicentre
• Richter scale is used to measure the magnitude
• Seismographs are instruments used to record the motion of the ground during an earthquake
• Core= the centre of the earth
• Mantle= the layer of earth under the crust
• Crust= the most outer layer of the earth
• Outer core= the layer of earth above the core
• Pacific ring of fire-s a path along the Pacific Ocean made by active volcanoes and frequent earthquakes
• Crater – funnel sheep above the vent where magma comes out
• Magma chamber – large pool of liquid rock
• main vent – the opening of the volcano where lava comes out
• lava – magma(moltenrock) emerging as a liquid onto earth surface