Abrasion Wears Down Rock Lesson 5

Engaging Scenario Who remembers what the words erosion and deposition mean? Let’s think back to our walk from Lesson 1. Did anyone see any examples of erosion or deposition?

Engaging Scenario How was this landform created, by erosion, deposition, or both? How does this resemble the river models you made in the last two lessons?

Engaging Scenario How were each of these landforms created? How long did it take to create each feature?

Engaging Scenario How was this landform created? Where is the water that might have eroded the canyon?

Engaging Scenario What are some of the different features in this landform?

Engaging Scenario What are some of the different features in this landform? Are there signs of erosion? What are the signs of deposition?

Equipment Inventory Limestone Quartzite Pumice Sandstone Slate Construction paper

Focus Question What happens to rocks over time? My Science Notebook Name:____________________ Grade Level:_______________

Prediction I think that rocks will ___________________ because ___________________. Note: This is the end of part 1. My Science Notebook Name:____________________ Grade Level:_______________

Data/Observations Observations of the rocks before grinding Limestone Pumice Sandstone Slate My Science Notebook Name:____________________ Grade Level:_______________

Data/Observations Observations of the rocks after grinding Limestone Pumice Sandstone Slate My Science Notebook Name:____________________ Grade Level:_______________

Individual Response to the Focus Question (IRFQ) I claim that rocks _____________ because _____________. My Science Notebook Name:____________________ Grade Level:_______________

Making Meaning Conference

Describe the effect the quartzite “grinder” had on each type of rock. Are all rocks equally hard? How can you tell? Which of the rocks you rubbed today broke down more easily? Which did not break down much? Why? When do rocks have an opportunity to rub against each other? What process have you studied already where rock abrasion might occur? Is abrasion a “building up” or “wearing down” process? Where does sediment created by abrasion end up? How do grinding rocks help shape the landscape? How long does abrasion take to break down a rock?

Vocabulary Abrasion—The grinding down of one rock by another. My Science Notebook Name:____________________ Grade Level:_______________

Conclusion I learned… Remember to use correct scientific vocabulary! My Science Notebook Name:____________________ Grade Level:_______________

Below the Line Science Rubbing rocks together causes abrasion which is a form of weathering. My Science Notebook Name:____________________ Grade Level:_______________

Reflection I wonder… My Science Notebook Name:____________________ Grade Level:_______________