landform, continent, metamorphic, tectonic, erosion, weathering, subduction, igneous, volcanic, sedimentary, physical, chemical
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landform |
A landform a natural feature, such as a mountain or valley, of the Earth's surface.
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continent |
There are 7 continents on planet Earth.
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metamorphic |
A metamorphic rock is a result of a transformation of a pre-existing rock.
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tectonic |
Plate tectonics is the movement of earth's crust and the upper part of the mantle.
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erosion |
Erosion is when the earth's surface is worn down.
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weathering |
Weathering is a natural process that slowly breaks apart or changes rock.
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subduction |
Subduction is when one of the plates is pushed under the other into the Earth's mantle.
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igneous |
Igneous rocks have formed by the cooling and hardening of molten lava or magma.
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volcanic |
The town experienced a volcanic eruption.
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sedimentary |
The 'gluing together' of different sediments to make sedimentary rock.
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physical |
Physical weathering is when the rocks and minerals are broken down but the chemical composition remains the same.
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chemical |
In chemical weathering, the minerals that make up the rock are changed.
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* This sentence was added by a Spellzone user.
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