a surface current forms
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Direct current (DC) is produced by an electric battery. This type of current flows consistently in one direction from the positive terminal to the negative terminal of the battery.
hot filtered water
The type of physical weathering that occurs when water seeps into cracks of rock and freezes is called frost wedging. As the water freezes, it expands, exerting pressure on the rock and causing it to disintegrate. Over time, this repetitive process can break the rock into smaller fragments.
It is a form of weathering known as frost wedging.
Frost wedging
Electric field is produced
water freezes in a crack in a rock
Hydrogen bonds cause water to expand when it freezes. As water cools and freezes, the hydrogen bonds between water molecules form a crystalline structure with a more open arrangement than in its liquid state, causing it to expand and become less dense.
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The type of weathering that occurs when water expands inside the cracks of rocks when it freezes is called frost wedging. As water freezes, it expands, putting pressure on the surrounding rock and causing it to fragment and break apart over time. This process is a common form of mechanical weathering in cold environments.