What is an example of physical weathering?
Weathering refers to the process by which rocks are broken down into smaller pieces over time. The three kinds of weathering are chemical weathering, biological weathering, and physical weathering. Physical weathering happens in a variety of ways.Ice CrystallizationIce crystallization, sometimes called “ice wedging” or “frost wedging,” occurs when water gets into a pore or crack in a rock and then freezes. Because water expands when it becomes ice, it can break the rock apart. This type of physical weathering occurs only in places where it gets cold enough for water to freeze.Salt WeatheringSalt crystallization, or salt weathering, is a form of physical weathering that occurs when a saline solutions enters a crack in a rock and then crystallizes due to a temperature change, expanding and fracturing the rock as it does so. Salt crystallization occurs mainly in coastal areas and hot, dry environments.Root WedgingAnother type of physical weathering is “root wedging.” Root wedging happens
