Chapter 7 Lesson 2 Earthquakes. What is an Earthquake? A sudden trembling of the ground caused by movement happening in the crust.
Chapter 7 Lesson 2 - Earthquakes. How Do Earthquakes Happen? An earthquake is defined as a sudden trembling in the ground caused by something happening.
Chapter 7 Lesson 2 - Earthquakes
Chapter 7 Lesson 2 Earthquakes
