4/11/2024 0 Comments Ice wedging water falls diagramOxygen causes iron- bearing minerals in rock to break down.ġ0 1 Chemical Weathering Chemical weathering occurs when the chemical composition of rock changes. Which of the following is an example of chemical weathering? Plant roots grow in cracks in rock and break the rock apart? Freezing and thawing of water widens cracks in rocks Wind blows sand into rock, scratching the rock. As they burrow through sediment or soft sedimentary rock, animals break rock apart.ĩ Answer the following: 1. 1 Plants and Animals Gophers and prairie dogs also weather rock-as do other animals that burrow in the ground. As they grow, roots become thicker and longer, slowly exerting pressure and wedging rock apart.Ĩ Learning Target: I can explain how deposition, erosion and weathering occurs by using specific vocabulary when applying real-world scenarios. If the temperature falls below freezing again, the process will repeat itself.ħ 1 Plants and Animals Plant roots grow deep into cracks in rock where water collects. The water freezes and expands, forcing the cracks to open further.ġ Ice Wedging The ice melts. The deeper the cracks are, the deeper water can seep in. Two of the many causes of mechanical weathering are ice wedging and living organisms.ġ Ice Wedging Water seeps into cracks. The small pieces are identical in composition to the original rock. Mechanical Chemicalġ Mechanical Weathering Mechanical weathering breaks rocks into smaller pieces without changing them chemically. What is happening to the cement? Explain your answer.Ģ Learning Outcome: I can explain how erosion and weathering occurs by using specific vocabulary when applying real-world scenarios.ģ 1 Weathering Weathering is a mechanical or chemical surface process that breaks rocks into smaller pieces. Kickstart Write and Answer the following questions in your notebooks: How do you think rocks break apart? 2. ![]() Presentation on theme: "Today I am collecting your labs and weathering graph practice Homework"- Presentation transcript:ġ Today I am collecting your labs and weathering graph practice Homework
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