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Section 5.1 Forces in Earth’s Crust Reading Notes 1. Stress is a force that acts on an area of rock to change its •Shape _________________ and ____________________. •Volume 2. Key Question 1. How does stress in the crust change Earth’s surface? • Tension, compression, and shearing work over millions of years to change the shape and volume of rock. 3. What are the three types of stress in rock? • Tension • Compression • Shearing 4. Key Question 2: Where are faults usually found, and why do they form? • Most faults occur along plate boundaries, where the forces of plate motion push or pull the crust so much that the crust breaks. 5. What are the three types of faults? • Normal fault • Reverse fault • Strike-slip fault 6. Key Question 3: What land features result from the forces of plate movement? • Over millions of years, the forces of plate movement can change a flat plain into landforms produced by folding, stretching, and uplifting Earth’s crust. • These landforms include anticlines and synclines, folded mountains, fault-block mountains, and plateaus.