Continental Relief | Ocean Floor Relief | Rock Deformation | Igneous Rocks | Metamorphic Rocks and The Rock Cycle |
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The surface geological features of the Earth
What is topography?
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False. The topography of the ocean floor is pretty uneven.
True or false: The ocean floor is mostly flat and even.
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Folds and faults
What are two things that stress on rocks can produce?
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They are formed when magma solidifies.
How are igneous rocks formed?
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They are formed inside the Earth's crust.
Where are metamorphic rocks formed?
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Rain, wind, ice
What are two examples of Earth's external forces?
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Ocean ridges
What are large underwater elevations in the central part of an ocean called?
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Compression, tension and shear
Name 3 types of stresses that can cause deformation in rocks
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Intrusive or plutonic igneous rocks
What type of igneous rocks is formed when magma solidifies slowly inside the Earth's crust?
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False! The pressure is also very high.
True or False: Metamorphism takes place deep inside the Earth where the temperatures are very high and the pressure on the rocks is low.
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They move the plates and create geological structures.
What do the Earth's internal forces do?
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The Mariana Trench
Can you name one famous deep ocean trench?
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Your drawing should be a U shape
Draw the shape of a syncline fold
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What is one example of an intrusive or plutonic igneous rock?
What is one example of an intrusive or plutonic igneous rock?
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It produces changes in the appearance, texture and the types of minerals in the rocks.
What are three things that metamorphism produces changes in in rocks?
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Mountain ranges are formed when two tectonic plates collide. The plates are under a lot of pressure and causes the sediments to fold and form mountains.
Explain in your own words how mountain ranges are formed.
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Oceanic trenches
What are deep depressions in the ocean floor called?
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A fault is a fracture in a rock caused by a displacement of the two volumes of rock on both sides of it
Explain in your own words what a fault is
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They are formed when magma cools down very quickly as it reaches the Earth's surface in the form of lava.
Explain how an extrusive or volcanic rock forms
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Cracks in the Earth where magma rises, ocean basins where sediments are sinking
What is one place where metamorphism takes place?
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They're frequent because mountains are formed when two tectonic plates meet.
Explain why earthquakes and volcanoes are frequent in mountainous regions
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Continental shelves
What are the parts of a continent that are covered by the sea called?
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A fold is a bend in the ground caused when plastic materials are compressed
Explain in your own words what a fold is
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Yes, it is formed by magma that cools down very quickly. No, it doesn't have crystals.
Is pumice formed by magma that cools down quickly or slowly? Does it have crystals?
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External forces like weather, the energy of rivers and seas AND the movement of the tectonic plates
What are two things responsible for changes in rocks during the rock cycle?
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