Volcanic rock made from molten material brought up to Earth's surface and cooled into solid rock
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Card 9
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Made up of broken fragments of rock worn down by weathering on Earth's surface. It is deposited in layers, often under water
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Card 10
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Folded and distorted by heat and pressure as Earth's tectonic plates move
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Card 11
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This rock is soft and crumbly- valleys can be seen, permeable- no surface water, soil is alkali- fertile;growing crops, and found in lowland areas
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Card 12
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This rock is found in upland areas, is very hard- mountains are seen, Impermeable- surface water and soil is acidic- not fertile so no crops
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Card 13
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... is the breaking down or dissolving of rocks and minerals on Earth's surface. Water, Ice, Acids, Salt, Plants, Animals and changes in temperature are all agents of this. e.g- Mechanical, biological or chemical
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Card 14
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... weathering is caused by temperature changes, especially on mountains. Large temperature vacation between day and night leads to freeze-thaw weathering
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Card 15
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... weathering is the decay of a rock which involves chemical reactions between moisture, temperature and some minerals within the rock. E.G- Carbonation