Tuesday, September 08, 2015 A-Day Objective: YWBAT explain how the composition of rock affects the rate of weathering. Drill: Does the rate at which a.

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Presentation transcript:

Tuesday, September 08, 2015 A-Day Objective: YWBAT explain how the composition of rock affects the rate of weathering. Drill: Does the rate at which a rock undergoes chemical weathering increase or stay the same when the rock becomes more mechanically weathered? Why Homework Study WOW

Answer Mechanical weathering breaks down rock into smaller pieces, which increases its surface area. This exposes more surface area to the effects of chemical weathering.

Did you know…? A cemetery is a great place to observe the effects of differential weathering because several different kinds of rock are used to make headstones, and most headstones are dated.

Today’s Activities  Drill  Google Classroom  Rates of Weathering Lab  Quizlet  Conclusion

Closure What is differential weathering?

Closure Answer Differential weathering is the process by which softer, less weather-resistant rocks wear away, leaving harder, more weather-resistant rocks