JC: Shaping the crust
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Core | Centre of the Earth. It is the hottest part.
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| Mantle | Lies under the crust. Is made of molten / semi molten rock called magma.
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| Crust | Outer layer of the earth. It is made of solid rock.
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| Plate | The crust is broken into sections called plates.
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| Boundary | The point where each plate meets.
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| Convection Currents | Circular movement of magma formed from the heat of the core. They are found in the mantle and cause the plates to move.
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| Continental Drift | The movement of plates due to convection currents.
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| Destructive Boundary | Plates that collide with each other. These cause fold mountains, volcanic mountains and earthquakes.
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| Constructive Boundary | Plates that separate. These cause volcanic activity that results in volcanic mountains, volcanic islands and mid ocean ridges.
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| Passive Boundary | Plates slide past each other. These cause earthquake activity which results in earthquakes and fault lines.
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| Molten Rock | Melted rock.
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| Magma | Molten / semi molten rock.
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| Pacific Ring of Fire | The edge of the Pacific Plate. A lot of volcanic activity occurs here.
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| Mid Ocean Ridge | Formed when two plates separate. e.g Mid Atlantic Ridge
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| Vent | Narrow tube in the Earths crust.
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| Crater | The top of the volcanic mountain from which lava flows.
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| Magma Chamber | Magma rises up to form a magma chamber in the mantle.
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| Active Volcano | These volcanoes erupt regularly e.g. Mt Etna in Sicily
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| Dormant Volcano | These volcanoes have not erupted for a long time, but may erupt again. e.g. Mt Vesuvius in Italy
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| Extinct Volcano | These volcanoes have not erupted in recorded history e.g Slemish Co Antrim
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| Geyser | A natural hot spring that boils and lets out a large burst of water and steam from time to time.
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| Tremor | Vibration in the earths crust.
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| Faultline | A crack in the ground that occurs when the Earth's tectonic plates move or shift and are areas where earthquakes are likely to occur.
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| Focus | The point beneath the Earths surface where the earthquake happens.
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| Epicentre | The point on the Earth's surface directly above the focus.Tremors are strongest here.
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| Seismograph | An instrument that measures the tremors in the Earths crust.
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| Seismologist | A person who studies earthquakes.
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| Richter Scale | Used to show the strength of an earthquake. The scale ranges from 1 to 12.
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| Tsunami | A huge wave caused when an earthquake occurs under the sea.
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| Fold Mountain | Form when two plates collide with each other.
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| Anticline | An upfold / top of the mountain.
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| Syncline | A downfold / valley.
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
Ms Sweeney Geography
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