Chemistry - rocks
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chemical |
Chemical weathering is when acid rain falls and reacts with the minerals in the rock.
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physical |
Physical weathering is when the forces make cracks in the rocks when they are heated and cooled over and over again.
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biological |
Biological weathering is when plants grow into the cracks of the rocks causing the rocks to break apart.
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erosion |
The movement of bits of rock is called erosion.
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transported |
Rock grains and fragments get transported by the wind or water.
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abrasion |
When rock fragments bump into each other and wear away it causes abrasion.
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sediment |
Rock grains and fragments dropped on the bottom of a river, lake or sea are called sediment.
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deposit |
Moving water can drop or deposit rock fragments or grains.
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fossil |
A fossil is the remains of a dead animal or plant that becomes trapped in layers of sediment and turned into rock.
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limestone |
Limestone is a sedimentary rock consisting mainly of calcium carbonate.
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* This sentence was added by a Spellzone user.
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